If you took a loss, you’ll need to determine if it was a loss because you over-traded / traded when you knew you shouldn’t have / didn’t follow your trading strategy, OR was it just a normal statistical loss that was unavoidable (you will have some losses even if you’re trading properly, this is normal)? This question you can ask of a winning or losing trade (losing trades can and should be good setups if you’re sticking to your trading strategy and not over-trading). Usually this type of preoccupation with a trade is the result of trying too hard to make money, i.e., you’re risking too much per trade or you’re over-trading and trying to ‘force’ your trading account into profit.