I find a debrief helps.
The things and patterns and feelings and perceptions you have, in the moment, may be different when seen in hindsight.
I know I tend to stick to a dumb trade, in that, if I am long, I am fixated in looking to re-inforce my decision, rather than try to bail out. That's where SL discipline comes in.
Journalling your thoughts during the trading day, can help develop objectivity.
I tend to write code and trade micro-lots, and average out, and leave alone.
Most of my trading is aggregations over time, and I let them do their thing.
I had forgotten the stomach churning experience of watching the markets real time.
It is also brutal admitting to newbie errors, losses, missed trades, etc.
At the same time, liberating.