Hey, I don't know much about the predicament. I'm currently a senior waiting for the spring semester to come around, ya know..?
Anyway, I have a lot of friends that are homeschooled that really want to go to college. It's for the best, really. You're not going to live at home forever, and you need to stick your neck out. I'm not saying you're a coward or anything, but, you have to admit, homeschooling is a parent's way of making SURE that their child is safe period. Kind of like the old 'protective parental bubble'.
College would be a breath of fresh air for you. And, to the question about classes, I think you should go on your interests, but get your prerequisits(So misspelled that) out of the way. It'll give you the basics, like algebra, english, reading, etc.. It'll help you out and you'll be able to see if you really want to go to an actual university or not.
Going to a community college close to home would probably be the best thing to do for now. It's cheaper, you can still stay at home, and also experience the world for what it is. I warn you, it's not all fluffy bunnies and happy smiles. It stinks a lot of the time.