Replying to Online highschool

i go to a mega gay private christian high school, but it's a college prep school and it's pretty good education-wise, way better than the public school in my area (Detroit schools suck ass). I'm pretty smart, but with school I don't learn anything, I just can't focus on the person talking and even if i do I don't learn from it. My schools starting an online school, next year will be it's second year. I'm thinking of transferring to the online school for my junior and maybe senior year. I live right by the school and I would be able to come to an art class or something on campus if I really wanted. The thing is, I don't really know, much about how online schooling works, is there anyone on here that have gone to an online school that could share some knowledge/advice?