First step is you gotta be real with yourself. If you're useless, admit it. First step to changing is you gotta admit it. When I was a bit overweight I admitted it, and ultimately lost the weight. If you are happy and satisfied nothing will change. But 'useless', is a bit of a different term its kinda a harsh word because I don't think anyone is 'useless'. If you dont wanna be kinda useless/ useless at something you just gotta give it your all/study it/ask questions and never think you know everything. The moment you think you're the master and know it all is the day you stop learning. The key to being a true master at something is always be a student. Sorry if it sounds corny. Good luck.