Repeating Trading Mistakes: What Thirty Sessions of Records Actually Show

By Sofia Harchich | Trading Psychologist & Behavioral Finance Writer |  thewealthmirror.com

Repeating trading mistakes produce a particular kind of private conclusion, and it usually arrives around the third or fourth time.

The explanation changes each time. The first is bad luck. The second is carelessness. By the fourth, the explanation has quietly changed shape: it is no longer about the trade at all. It is about you — some defect in discipline or character that other traders apparently do not have. That conclusion feels like honesty. It is the most expensive thing in the account, and it does not survive contact with an actual record.

Repeating trading mistakes leave a trail, and the trail says something different from the conclusion. What follows is a reconstruction. The numbers below are illustrative rather than clinical — a worked example built to show the shape these records take, not a case file. Anyone keeping the six-variable log described in what is trading psychology can run the same reading on their own data within a month, and the shape is what matters here, not the specific figures.

The record

Thirty trading sessions. Six variables logged after each one, scored 0 to 5: awareness of the pattern, adherence to the written plan, recovery speed after a loss, impulsivity, emotional intensity, and somatic awareness. One line before each session recording physical state at the open — settled, activated, or flat.

The trader in this reconstruction has one identified problem: after a loss above a defined threshold, they re-enter within twenty minutes at roughly double their normal size. They have known this about themselves for two years.

Sessions 1 to 10: detection arrives fast

The first ten sessions do what first ten sessions almost always do.

Awareness starts at 1 and reaches 4 by session nine. In week one the trader writes not sure what happened there twice. By session eight the entry reads: tight across the chest before the re-entry, same as always, about ninety seconds after the stop. That is a genuine technical achievement. It is a trader learning to observe their own physiology in real time under financial pressure, which is not a small skill and is the one everything else gets installed on top of.

Rule adherence over the same ten sessions: 2, 2, 1, 3, 2, 2, 1, 2, 2, 2.

Nothing has moved. The behaviour is now visible, described accurately, timestamped — and unchanged. This is the point at which most traders conclude the observation was pointless and either stop recording or increase the severity of their rules.

Sessions 11 to 20: the gap becomes measurable

The second block is where repeating trading mistakes stop looking like a knowledge problem to anyone reading the record from outside. By session fifteen the journal entries are excellent. Precise, unsentimental, psychologically literate. One reads: the re-entry is not about the money, it is about not wanting to end the day having been wrong.

Awareness holds at 4 and 5. Rule adherence: 2, 3, 2, 2, 1, 2, 3, 2, 2, 2.

The distance between those two numbers is the finding. Not the awareness score, which has risen impressively and means very little on its own. The awareness–action gap — how much a trader can see, set against how often they interrupt it in the same session — is what the record is actually measuring, and here it has widened rather than closed.

There is a name for what is happening in these ten sessions. Buffered awareness is insight absorbing the pressure that would otherwise force a change. The description discharges the discomfort. Understanding the pattern feels, from the inside, close enough to changing it that the difference is invisible without an external marker. Nothing dishonest is going on; the writing has simply become the practice rather than the record of it.

This catches the traders who did the work, and were never told that the work has a second half.

Why repeating trading mistakes survive insight.

The reconstruction makes visible something that is hard to see from inside a single session: repeating trading mistakes are not a knowledge problem, and by session twenty this trader has proved it about as thoroughly as anyone could.

The circuit underneath runs in five stages. A trigger, then emotional activation, then reactive behaviour, then an outcome, then a belief reinforced by that outcome — which lowers the threshold for the next trigger. The reason it holds is stage five. The outcome gets read through the belief that authorised the behaviour in the first place. Re-enter at double size and lose, and the available reading is the market was against me. Re-enter at double size and win, and the reading is the aggression was right.

Two opposite results, one belief strengthened. Kahneman and Tversky’s work on loss aversion explains why the loss carries roughly twice the weight; it does not explain why the win reinforces the same circuit, and that is the part doing the real damage. All five stages are defined, one by one, on the instability loop page.

Installing a change means occupying the empty space between trigger and behaviour, in a fixed order: detect, then regulate, then decide, then execute, then enforce. This trader has built step one to a high standard and has nothing at step two. Every rule they have written addresses step five. Adding a stricter rule at step five to a failure at step two produces a trader who breaks stricter rules and thinks less of themselves for it.

Sessions 21 to 30: what changed

The intervention in this reconstruction is deliberately unimpressive. No new rule, no new strategy, nothing added to the plan.

After any loss above the threshold, the trader stands up and leaves the desk before doing anything else. Not for a set time — the platform simply is not in front of them while the activation is at its peak. The somatic marker they had already learned to detect at session eight becomes the trigger for one physical action rather than one more note.

Rule adherence across sessions 21 to 30: 2, 3, 3, 4, 3, 4, 4, 3, 4, 4.

Awareness stays where it was. Impulsivity drops from a running average near 4 to a running average near 2. The behavioural signature to look for is awareness at 4 or above with impulsivity at 2 or below in the same session, and it appears seven times in this final block, having appeared once in the previous twenty.

The two years of knowing were not wasted. They built the detection that made a two-second intervention possible. What they could not do on their own was supply the step that comes after detection, because nobody had told this trader that the steps have an order.

What the reconstruction does not show

Three honest limits, since a worked example that only confirms its own thesis is worth very little.

• It does not show which of the five layers this trader’s problem sat on, and repeating trading mistakes can originate on any of them. Position-size escalation after a loss reads as behaviour, but it can equally be a mobilised nervous system seeking discharge, or a belief about being wrong that has nothing to do with money. The intervention that worked here suggests the third layer; it does not prove it.
• It does not rule out the possibility that thirty sessions is simply a quieter market than the twenty before it. Any single record has this problem, which is why the monthly comparison matters more than the block.
• It shows nothing about profitability, deliberately. The record measures alignment with a process, not outcomes, because rewarding results would reward the aggressive re-entries that happened to work.

A second record: the opposite failure

One reconstruction proves very little, and the more instructive comparison is a trader who breaks in the other direction.

Same six variables, same thirty sessions. This trader’s rule adherence sits at 4 and 5 from the first week and stays there. Impulsivity averages 1. By any conventional reading of a trading journal, this is the disciplined one.

Awareness across the same thirty sessions: 2, 1, 2, 2, 1, 2, 2, 1, 2, 2, and so on, essentially flat.

Sessions 1 to 24 produce no incidents at all, which is exactly why nobody looks. Then conditions change — a volatility regime the written rules were never built for — and the rules produce a series of textbook-compliant losses. The entries read followed the plan four times in a row. There is nothing in the record indicating the trader noticed anything unusual, because noticing is the capacity that was never built.

High adherence with low awareness looks like the safe end of the scale and functions as a different break in the same sequence. Detection is missing, and enforcement has been compensating for it — which works for as long as conditions stay inside the range the rules anticipated, and fails silently the moment they do not. This trader’s repeating trading mistakes are not visible as a loop at all until the twenty-fifth session, and by then they have been running for a month.

Set the two records side by side and the diagnostic falls out. The first trader could see everything and interrupt nothing: detection built, regulation absent. The second could interrupt reliably and see nothing: enforcement built, detection absent. Both were told to work on their discipline. For one of them that advice was irrelevant, and for the other it was the reason the problem stayed hidden.

The regression signature

The final ten sessions of the first reconstruction are the encouraging part, and encouraging blocks are where records get abandoned.

Improvement of this kind reverses under specific, predictable conditions rather than randomly, and the conditions are worth writing down while things are going well. Across records of this shape, the gap re-widens most often in three places.

• After a period of success rather than failure. Sustained profitability removes the pressure that justified the intervention, and the physical step gets skipped first on the days it is least missed
• On a change of instrument or session time. The intervention was installed against one detected marker; a different context produces a different marker, and the trained response has nothing to attach to
• When the loss threshold is not restated. The rule specified a loss above the threshold, and thresholds drift upward quietly as the account grows

None of these is a failure of commitment. Each is a structural feature of how an installed step behaves when the conditions it was installed under change, which is why the six variables keep being recorded after the problem appears solved. The record is not there to fix the pattern. It is there to show when the fix has stopped holding, roughly two weeks before the account does.

Running this reading on your own record

Two weeks of logging is enough to produce the same diagnostic, and the reading takes about ten minutes.

1. Score awareness and impulsivity after each session, 0 to 5, based on what happened rather than how it felt — how many entries fell outside the written plan rather than how disciplined was I
2. Plot the two columns side by side and ignore every other number for now
3. Look for sessions where awareness is 4 or above and impulsivity is 2 or below; count them
4. Compare that count against the previous fortnight, not against zero
5. Note the instrument on every line — patterns are often specific to what is being traded rather than spread evenly across a book

If awareness is high and the count is zero, the break is at step two and no additional rule will reach it. If awareness itself is low and inconsistent, the break is at step one and the work is detection, which is somatic before it is analytical.

A rising awareness score is not evidence of change. The count of sessions where you saw it and did not act is.

The conclusion the record replaces

The reason this reading is worth ten minutes has little to do with efficiency.

The private conclusion that arrives around the fourth repetition — that the problem is you, structurally, permanently — is a claim about character, and character claims cannot be tested or improved. They can only be carried. What a record does is replace that claim with a location: a step in a sequence, a layer, a gap with a number attached. Repeating trading mistakes have a location, and locations can be worked on. This is the whole of what the revenge trading loop has to teach, and it is available to anyone willing to write six numbers down for a fortnight.

If you do not yet know which emotional pattern your behaviour under pressure fits, the pattern quiz is the shorter route in.

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About the Author

Sofia Harchich is a Trading Psychologist and Behavioural Finance Writer with a Master’s in Psychology. She works at the intersection of Jungian shadow work, neuroscience, and market behaviour — helping traders understand the psychology driving their decisions, not just the strategy.

Read more at thewealthmirror.com/about

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