Get as curious about your losses as you are about your wins. The losses have more to say.

A win gets replayed for the feeling and a loss gets avoided for the same reason, leaving the more informative one unexamined. Success usually has several causes, some of them luck, and those are hard to separate from inside a good mood. A loss is specific. It points at something in particular, which is exactly why it is unpleasant to look at.

Take a recent one and go through it calmly a few days afterward. Ask what you would do at that point again, and separate what you controlled from what you did not. None of this is about blame, only about not paying for the same lesson twice.