One thing better

The final field asks one question, and it is asked of every trade in the log.

The question

What could have been done better on this trade.

At least one answer, always. Not a general resolution to be more patient, but a specific thing about this entry that a better version of you would have done differently.

One improvement per row, and the field is never left blank.

Why it is compulsory

A field that can be skipped gets skipped on exactly the trades you least want to examine.