How to get into college?

Im a sophomore 15, 6'1 and 197 pounds and I dnt have the best grades I get Bs and Cs mainly Cs, and rarely As if I'm good, that trimester I was going to try out for basketball this year and I just started playing last summer, this summer Im gonna practice to make varsity bench as a junior, maybe even a starter, I wanted to play football but I can't because my mom. But my question is Im trying to get into a good college because I know, My grades won't get me, but Im ridding on sports, Im wondering if I good get a scholar ship to a good college, I live in New Jersey and How good do I haft to to be? to get a scholar ship like do I haft to start JV? Start V? Bench V? do college scouts look at all the players? on any team? and what position would I hafta be, right now I play center but I figure im gonna hafta be like a small forward, or power forward?