you are not incompetent!
you made a game that people want to play just with that accoplishment it is certain that you are a very competent person.
many things can get in the way of your workflow that just make you a person. it certanly doesnt make you incompetent
take care of you self you have done a great job and sure there might be a couple of problems along the way but you have made a great game!
take care and remeber your accomplishments