You are off to a good start, already in the entrepreneurial spirit. Don't go the candy route though, sure you can make some money, but that time is better spent scheming and plotting ways to make money online.
When you get home, finish your homework, and read this forum. This forum is your number one tool. Pretty much anything you need to know is already here, you just need to find it. If you can't find it here, google it and you'll find it. When you are just starting out, you must be a sponge.
Soak in everything, and when you have the gist, try something out. Doesn't matter if your first few ventures don't work out (they seldom do), try em anyways. Every failure is simply a step closer to success. If you fail, just learn from it, tweak it, and try again.
If you find something that makes you $3 a day, scale it up. Multiply your efforts by 20, and turn that $3 a day into $60 a day. The only limits are the one's you present yourself with.