@shephjam002,
It depends on your high school, how large it is, how competitive it is and also how many teams your high school has - ie varisty, jr. varisty, freshman team? If you have a freshman team then you are likely to make the team. However, if there is only jr. varisty and varisty, and you have a larger school it is less likely.
Some sports are easier to get involved in if you are purely athletic. Someone very athletic may have a harder time getting the strategy of baseball as there is alot of planning and thought. Ok if there is a man on first base, no outs what play do you make if the ball comes to you...things like that. Have you at least played for fun?
You said you have hit a ball - have you hit with fast pitching, different types of pitches? You could start out practicing batting - go to a batting cage. One thing I've heard is if you can hit, they will find a place for you.