increasing my chess level while decreasing it


I will give you some advice that may be of service to you :)
You must maintain positive thinking at all times, before, during, and after games.
When you lose a game, learn from your mistake. When you win a game, learn why your opponent lost.
RIght before playing a game, breathe deeply and psychologically prepare yourself: "I will try my damn hardest to make this guy sweat."
Happy Holidays!
hello ! some time ago I have discovered delayed chess games (1,3 or 5 days per move) and thus stopped playing live chess little by little. those kinds of games helped me a lot to improve my understanding of chess play. therefore my level is growing step by step, reaching 1350 for now. but recently I tried to play live chess again, and my level has decreased despite my better understanding. I just can't focus on that way of playing chess anymore. I know our is simply a matter of discipline, I need to practice regularly to remediate to that. but still, if you faced this kind of situation, I'd like you to share your experience with me