Thank you for asking these questions, here are some answers:
My parents are really busy with work and the like, so it's all they can do to drive me and my sisters to school and hope that we learn things. I do have access to people who can help, though.
I have been homeschooled before! I don't remember much of it, only that it was a lot of fun to explore our town and that we did "school-in-a-box"- I think it was K-12. I'm not sure if that was particularly *successful* but there is something that has stayed with me even to this day-my mum teaching me how to read herself. She read to me all the time, I memorized books and talked very early, and she did some sort of phonics program and I was reading decent chapter books by the time I was around four. That was a success.
I do attend a school right now, though next year I'm looking forward to doing online school,which I hope to supplement with independent studies, as I'm foreseeing that it may leave something to be desired.
I don't really have a budget for buying curricula, but I'm great at finding quality stuff for free or cheap, especially when armed with my trusty library card! I'm sure my parents will be willing to help me with buying resources as well.
I'm poor at math at the moment. I can't really seem to go beyond the prealgebra level, and I rely on counting fingers and other preoperational sorts of habits. But this site: http://www.themathpage.com/looks promising. And thanks to my mum, my reading comprehension is great, but I have trouble writing formal compositions or stories if they're longer than about a page.
I think that apart from free courses at the library and online school, I will be mostly teaching myself. Some things I would like some formal instruction in after I develop more confidence in my abilities with them: piano, visual art, creative writing,singing,etc. I also want to take courses for fun and interaction with other learners.
I'm still quite undecided about college.