Learn from your mistakes? I do not think so! (look inside!)

We all understand the meaning of learning from our mistakes, but what if what is working for us is wrong?

When we play chess in a rating system we most often play against players in our own category with about a 50% win rate.

When a player tries to play a category above what works stops working, so that means that our conception of what is good is wrong and we need another way of evaluating what we are considering 'good'.

Those 50% good is wrong, and those 50% bad is bad too... A player, if you can understand me, is 100% wrong (lol!?)

That 'pun' dont matter too much... My question is:

"What if we work on our conception of what we consider good?"

Seems logical to me.

@will_is_myth Can you rephrase your last suggested question?

I tried answering your question by what I think are good concepts ...

1) Play in accordance with the objective;
2) Be open-minded towards fair-play;
3) Use the proper piece for the plan. Task each piece wisely. Supervise the chessboard;
4) Often to gain an advantage, a player most loose something to gain something;
5) In the opening you develop to create a middle game. If a piece becomes active, it gains value. Plan your endgame, while you exchange pieces during the middle game.

It is simple: if you win, it is not because you played good moves, it is because your opponent played bad moves.
However if you lose, you are sure you played at least one bad move, which you want to avoid in future games.
So you learn from your losses.
For that reason I advice against analysing won games.

@will_is_myth Exactly my issue too. I always pull the center fork trick in almost all my games where opponent plays Bc4. I usually feel good when the fork succeeds. But Stockfish i's always never impressed, says it's a bad move!!

Another one (but this is bad mostly), whenever I have a Bishop and Queen battery, I usually sac it to expose king! Stockfish has never agreed with my moves.....

As humans we learn from our mistakes and from the mistakes of others. Without that learning curve, we will blunder until we understand that a blunder has a large impact on the game. Every move will cause a wave of events.

The trick to chess is finding a weakness and exploiting it to an advantage. It must be done before your opponent can fix it or before your opponent finds one on your side of the chessboard.