[reason]

Personally, I would attend to my educational duties, and try to enjoy these years the best I can. That's not to say you shouldn't give attention to your development interests -- you absolutely should. Just don't worry too much about optimizing every second for maximum productivity. You're still really, really young, and have many years ahead of you to bury your head down in your work and really make progress. Plus, in my opinion, abandoning high school work wouldn't be the wisest thing to do. Make sure you stay on top of it; I don't think you'll regret it.

As for VPS, you could use free hosting services like Heroku and Google App Engine to play with some ideas. And for books, what type are you looking for? There are tons of free resources online to learn everything you could possibly imagine regarding web development (see other comments here for links). For someone strapped for cash, seek out resources online -- the same goes for those who've got money, too.

For scheduling time, like I said, don't worry too much about it. You might want to make a very rough schedule to stick to (like finish homework by 8pm, do programming tutorials for an hour, and work on an idea for another 3 or 4). But don't break your back sticking to it. Go out and enjoy being a kid.