So I'm trying to become better at chess, or to at least to learn from my mistakes and not make them repeatedly. I know that studying your own games is an extremely important part of improving, but exactly what does that entail? If I play a game and go over it, I will most likely be thinking the same thing I was then (unless it was time pressure).
For example, my position may become slightly worse over time, but I am unable to find exactly what it was that caused it, or what I could have done better. Sure, there is stockfish, which is helpful; but that only really helps with missed major opportunities or blunders. I can always find the move that stockfish prefers, but I do not always understand why.
I know that with time I will get better at analyzing my own games and realizing where I could have done better, but are there any tips or tricks to truly understand *why* my move was not sufficient?
Whether it is finding a partner (to study each other's games) or by just thinking about it until I finally manage to understand why: is there an optimal method, or at least a better one?