Hello and welcome to the forum.
You seem to have a good working plan in place, and have discovered the most wonderful thing of all-you have your own mind and can use it quite well to think for yourself. I agree with all the great advice given thus far:
Stay with your folks as they love you and are truly trying to do the best they know how.
Baptism is supposed to be a personal decision. YOU must be the one to decide this, and if your decision is not to become baptised, don't let anyone try to pressure you into something that could have life-long repercussions.
An education is the finest gift and goal to have-right now, make it your aim to study hard and be prepared for college. Perhaps you could get a scholarship if your grades are in the top percentage.
Glad you are here with us!