That moment when you just blunder and rage quit when your opponent didn't even move.


Blunder check before you move.
You will reach 1500 in no time if you do just that.
I think you're being extremely unrealistic here

Yeah I'd agree. IF you think you made a mistake, don't just resign. It's possible that either your opponent doesn't see it, OR you made a miscalculation and your move is perfectly fine, and the latter happens far more often than you might think.
I would recommend learning how to analyze your own games (there are plenty of guides on how to do this on YT) which should help you learn to recognize mistakes after you play your games.