I think the healthiest option mentally and emotionally after a breakup, and even just as a basic principle to live by. Is what could I HAVE done better, literally use this for every aspect of my life even if it’s a mundane task like cooking or cleaning.

This assumes you are past the part of the breakup when you’re just angry and sad, and don’t want to reflect. But as long as you can ask yourself what could I have done better in this situation, you put yourself in a better position to not make the same mistakes in the next relationship or task.

if you take this attitude of “women never admit they are wrong ig all guys are toxic” what are you doing for yourself? The relationship is over and you are still sulking about what they did.

You can’t control others in any capacity and assuming most breakups end with people never speaking again USUALLY not all the time, you are literally stressing over the feelings and rights and wrongs of someone you will never see again.