Where do I start my life?

If you read this, I’ll tell you my favorite mythical creature! :D
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I’m fifteen years old. I went to Montessori kindergarten. I went to several different Elementary schools. From 6th through 8th grade, I went to a Waldorf Charter School.

I decided that I wanted to be Unschooled for High School. I’m enjoying it so far, but I feel very dis-attached from the social world that a ‘traditional’ High School would provide. My two only friends go to a High School that they enjoy very much. I’m considering going there as well for my Junior and Senior year, just for the social aspect. The main principle of being Unschooled is only studying things that will actually apply in the child’s field of interest. I, by no means, wish to be a Mathematician, or any other mathematical professional, but I’m a little disconcerted by my friends studying Trigonometry, while I can hardly remember how to find like terms in Algebra. When I was in first grade, I exceeded the intellectual abilities of my classmates, but now, I’m just as smart as any of my peers.

I am interested in drawing, acting, anything in film, animation, writing graphic novels, writing fiction novels, video game design, board game design, and other such creative arts. I’ve looked into Full Sail University, and a few other art institutes, but all the ones I found had pretty terrible reviews. The problem is, I don’t know what the difference is between a College, or Junior College, or a University, or an Institute, or what degrees I could get and what they entail. I’m just completely clueless about where to start my future. All I know is what I’m interested in, and that I would love to become something big in one of those fields… (I’m also currently working on a claymation film that I hope will actually look professional when it’s finished, and that it’s perhaps something I can enter into a film festival).
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Anyway, thank you very much if you’ve read all this. I would monumentally appreciate any and all advice anyone may have to offer about steering my future in the right direction or what school I should go to. I’ll try to answer any questions as well. My favorite mythical creature is the Kraken (and boo hiss to anybody who skipped the whole thing just to find out about the Kraken).