Correct. It's human nature to want to be right. Trading is not about being right.
I disagree
If you are wrong on direction you will lose money every single time.
Human ego does not handle failure well. A losing trade is a short term failure. This is why most lose long term in trading. They can't wrap their mind around the long term probability even if the edge has a long term positive expectancy. A day means nothing, a week is pointless, but if you have a losing month over and over then the edge was never there to begin with. Scaling out accomplishes a couple of important concepts. It rewards your ego by banking some profit, it reduces the drawdown if it is done properly so that a winning trade rarely turns into a loser. Sure you would make more if 100% of your trades hit your exact profit target, but what if it does hit your target ? You scale out and trail the stop and give the trade freedom to reward you further.
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