What Luke said. Give it some time so you can get stabilised, but don't think that means you shouldn't go back to study at all. But if you'd had that much trouble with it before, I'd suggest you do a lot of research into the courses you're thinking about so you know as much as you can before you apply.

Woah, 'research' sounds scary, doesn't it?

I'm talking more about uni open days, and stuff like the Age Careers Expo, where you can meet the people who run or teach said courses. If you're thinking about it, but you have doubts, you need to talk to people about it and get some advice. People who know more about the topic at hand than your LJ friends do.