Find an expert teacher. Do everything they say, even if you hate it. If you have other ideas on how to improve, do them, but on your own time.
If you outgrow your teacher, i.e. you have stopped learning from them, find another expert teacher.
If you outgrow your teacher, i.e. you have stopped learning from them, find another expert teacher.
I say “coaches” as plural because chances are mastery is going to take work in multiple areas simultaneously (ie nutrition, mental health, physical therapy, etc…).