There are a lot of little, quick, ways to make a couple bucks while you're waiting for Pixar to give you a call. And if animation isn't exactly your thing, this also could work for graphic designers, and motion graphics artists.
Local Small Businesses
The first thing I would recommend is to get in touch with a local small business that could use an animation for their website. If you have a family member that owns their own business, that's perfect opportunity for your first job. Make something short and simple - something you can get done in a weekend. Then, once the animation is posted, share the link with everyone you know - Facebook is a great place for getting the word out. Go looking for other small business that could use an animation like the one you made, and share the link with them. Before you know it, you'll be making enough to pay your way through college!
Another place to look for work is to see if any of your friends are making iPad or iPhone apps. They need animation, and you do animation, so it's a great collaboration. You probably won't get a lot of money for that, but it's GREAT experience for getting your foot in the door at the larger game development companies.Stock Photography Sites
Another more anonymous way to get a quick buck is to create animated clips for online stock video companies like Pond5. You get paid a commission every time someone downloads your animation. The company takes a huge bite - but if you have one or two good clips you can count on beer money every month.For more advice, and to hang with people doing what you want to do, do a quick search for groups on Facebook. There are tons of people who've gone through what you're trying to do right now - ask to hear their 'glorious failure' and 'sparkling success' stories!