I think the main things to do well in life are to basically put in the effort to consistently concentrate while knowing what you want to do and staying positive with a ton of confidence. It can be hard sometimes or maybe you will want to get lazy from feeling worn out. This is probably where the mental health concerns can come into play. It requires a ton of dedication to basically set your mind on something that appeals to you. It can really be just unexplained feelings of negativity and feeling worn out while pushing through, but it can be lived through from thinking positive thoughts and having confidence no matter what and just pushing yourself to the limit on a daily basis.
What matters in the end result is that you're happy with what you are doing.