I need help bout basketball?

I could be a good player, so my coach says and my cousin who is a coach at dame(the collage) but anyway they say my only problem is that im lazy and out of shape like my handles anre nice and my passing my jumpshot is alright and my rebounding is good to. What do i do they say i could play d1 or d2 basketball. And i camt really jump i can olny dunk 9 1/2 and slap the back bored in a game i need help. If your a coach or and expert at bball help and i weight 198