What to write in a trading journal: 3 things beyond P&L

What should you not write?

Knowing what to skip keeps the journal alive. Four things waste your time:

• Price narration. "Entered at 42.10, it went to 42.80, pulled back to 42.30..." Your broker statement already tells that story, in better resolution.
• Essays. A journal that demands ten minutes per trade dies within weeks. Two honest lines per trade beat a beautiful essay you stop writing.
• Venting without a label. "Market makers hunted my stop again" records a mood, not data. If you're angry, write the label: frustrated. That one word is filterable; the rant is not.
• Outcome commentary. "Great trade!" on a winner teaches you nothing. A C-setup that happened to win is still a C-setup, and the journal should say so.

When should you write the entry?

Timing decides data quality:

• Emotional state: the entry state at entry. Logged later, the outcome rewrites the memory. The during and after states go in with your exit notes.
• Quality, rules, lesson: right after the exit. While the trade is fresh and before the next one starts competing for attention.
• The review question: once a week. A fixed slot, fifteen minutes. Without that slot, entries are archived guilt instead of a feedback loop.

How do three fields turn into patterns?

The fields are deliberately filterable. After 30-50 trades the first hints show up; treat them as hypotheses to watch, not conclusions, until each bucket has real volume. The questions worth asking:

• Win rate by emotional state: how do your "impatient" entries actually perform against your "calm" ones?
• Win rate by setup quality: what do C-setups really cost you per month?
• Rule adherence over time: are the broken-rule days clustered after losses?

That's the point where journaling stops being a diary and becomes a dataset. Structured entries are also exactly what an AI coach needs to find the correlations you'd miss by hand.

A Simple Template

Here's a format that takes less than a minute per trade (more variants in our trading journal templates):

• Setup: What pattern or signal triggered the trade
• Emotion: How you felt entering
• Quality: A+, B, or C setup
• Followed rules: Yes or no
• Lesson: One thing to remember

What does a filled-out entry look like?

Here's the template in action. Emotion logged at entry, the rest thirty seconds after the exit:

• Setup: Breakout above yesterday's high, volume confirming
• Emotion: Impatient, urge to be in before the retest
• Quality: B
• Followed rules: No. Entry criteria said wait for the retest
• Lesson: The retest would have given a better price AND a tighter stop

Five lines, one honest admission, one reusable lesson. Notice what's not there: no price narration, no self-flagellation, no essay. A month of entries like this answers questions that feel unanswerable today, starting with the weekly one below.

Your Weekly Review Question

At the end of each week, answer this one question:

"What percentage of my trades were A+ setups taken in a calm emotional state?"

If that number is low, you've found your edge leak. Improve that percentage, and your results will follow. This is the foundation of trading discipline: knowing what works and doing it consistently.