What you are recording is mostly a statement
Search for how to keep a trading journal and the templates all look much the same: date, instrument, direction, entry, exit, lot size, profit and loss.
Those columns have one thing in common — your broker's report already has them.
You spend the time copying them out, and what you end up with is the same set of numbers. It tells you what the result was. It does not tell you why it turned out that way.
A statement records what you did. A journal has to record what you were thinking at the time.
The third of the three reasons traders keep losing is never having verified it. What you verify with is the three columns below: Why Traders Keep Losing: Three Real Reasons