Quite a few people your age have these aspirations, and who can blame them? All I would say is
A: Never bet your life on anything, have a back-up, finish school and go to Uni of possible etc. BUT... don't allow anyone to say you can't achieve your dreams. They don't know you. Only you know yourself.
And B: visualisation of shots and mental attitude count towards success more than everything else in the game.
APART FROM SHORT GAME - BE AWESOME. Live not...