There is no need to record how many losses we have spent while trading and there is no need to blame ourselves for how many mistakes we have made, because the most important thing is not how the goal is but how the process arrives at a goal.
Why not? I mean if you do that, you will forget your mistakes. It is important to learn from your mistakes and move on, move forward so that you never do the same mistakes. I got your point on what you are trying to say. But isn't it better to suffer first and learn to never do that again. After that, if the results are on the positive side, you will enjoy it even more than what you said.
We are humans, after all. We are not perfect, we make mistakes. But those who wants to become somewhat perfect, for them the process of keeping records of past losses are important. I don't know, how are you going to be happy if the history keeps repeating itself?