The trading journal with AI: how to turn every trade into a lesson

Why almost nobody keeps a journal (and why you should)

Everyone knows a journal helps. Almost nobody keeps one for more than two weeks. The reason is simple: filling it in is boring and reading it back is even worse. So the lessons stay in your head for a few days and then disappear.

The point is not to write a lot. It is to always write the same things, in the same way, so that after a month you have data to compare instead of memories.

AI changes exactly this: it saves you time when writing and does the heavy lifting when reviewing.

The card to fill in (before and after)

Before entering you fill in the top part. After exiting you complete the bottom part. Nothing else is needed.

Template to copy:

Date and time:
Instrument and direction:
Thesis in one sentence:
Entry / Stop / Target:
Risk in money:
Emotional state before entering (1-5):
Did I follow the plan? (yes / no, why):
---
Result in money and in R (multiples of risk):
What I did well:
What I would change:

The most important field is "Did I follow the plan?". A losing trade taken by the rules is a good trade. A winning trade taken outside the rules is a problem that sooner or later costs a lot.

How to use AI to write faster

If at the end of the day you do not feel like filling it in, you can dictate or type a couple of messy lines and let AI sort everything out.

Prompt to copy:

I am giving you messy notes about a trade I made today. Put them into my journal card with these fields: date and time, instrument and direction, thesis in one sentence, entry/stop/target, risk in money, emotional state (1-5), did I follow the plan, result, what I did well, what I would change.
Do not add information I did not give you: if a field is missing, write "to complete".
Notes: [write here]

How to use AI to find the mistakes you repeat

This is where the real value is. After 20 or 30 cards, give AI the whole journal and ask it to look for patterns. These are things that are hard to see from the inside: you always enter too early after a loss, you move the stop when you are tired, you risk more on Mondays.

Prompt to copy:

This is my trading journal for the last few weeks (one card per trade).
Analyse it like a strict but fair coach:
1. Which mistakes repeat most often?
2. In which conditions (day, time, emotional state, instrument) do I get my worst and my best results?
3. How many times did I not follow the plan, and with what average result?
4. Give me at most 3 practical rules to add to my method.
Use only the data I give you, do not invent numbers, and tell me if there are too few cards to draw conclusions.
Journal: [paste the cards here]

One tip: do this review once a month, not after every trade. With little data, any pattern looks true.

The most common journal mistakes

• Only logging losing trades: wins need to be understood too.
• Filling in the card days later: memory rewrites emotions.
• Giving AI the journal and asking what to buy tomorrow: that is not what it is for.
• Changing the template every week: without the same fields you cannot compare anything.

The journal is also the last of the 5 steps of my method: you can find it explained in How I prepare a trade with AI. To understand where AI really helps and where it does not, read AI in trading: what it can really do.

This article is for educational and informational purposes only and does not constitute financial advice. Trading involves a high risk of losing capital.