A Journal Without Taxonomy Is a Diary

Humans remember stories, not distributions. A free-form journal reinforces that bias: you explain, justify, and rationalize.

Taxonomy turns journaling into measurement. Measurement is the only way to identify repeatable leaks: the same mistake, the same time window, the same regime.

Without classification, you can’t separate “strategy variance” from “you variance”.

Practical framing: the market is a feedback system. Your job is to remove the behaviors that produce the same loss pattern, not to “feel better” about it.

• Turn recurring mistakes into hard gates.
• Reduce degrees of freedom when you’re losing.
• Make the next decision simpler than the last.

Write stories → no classification → repeat same mistakes → confidence erodes → overrides increase → risk creep → account damage.

How it kills accounts:

1. The rule exists only in your head.
2. Stress arrives and you improvise.
3. Improvisation becomes inconsistency.
4. Inconsistency becomes random results.
5. Random results become a slow bleed.

Every trade must have: setup type, regime, execution notes, and mistake tags.
Track rule breaks separately from strategy outcomes.
Review by category, not by emotions.

Rule that survives:

• Write the trigger in observable terms.
• Write the action in one sentence.
• Write the penalty for breaking it.

You think you lose because your strategy is bad. Taxonomy shows you actually lose after two specific triggers: trading when bored and moving stops early. Now you can fix something real.

Tell: if your rule isn’t enforceable, it’s a suggestion. Suggestions don’t survive stress.

What to track (minimum viable)

Tag each trade by setup, regime, and mistake type. Then review monthly by category: which setups work, which mistakes repeat, and which emotions correlate with rule breaks.

Related: A good outcome can be a bad decision and Discretion is hidden leverage.

Glossary: outcome bias, confirmation bias, discretion.

Field checklist

• Write the rule in observable terms: if X, then Y.
• Remove choices under stress. Choices become rationalizations.
• Track the precursor: what state were you in before the mistake?
• Make deviations costly (size down, pause, review).
• Turn lessons into gates, not notes.