People at university are often idiots. I found it impossible to make friends even though I'm quite a social person, because I don't like drinking a lot and making an arse of myself; I'm also not much of a joiner. I've made lots of friends outside/after university, however. Lots came through work, some came from doing activities I like -- such as in my running club or when going out swing dancing.

Have you tried the internet to look for friends? OKCupid comes to mind, I've made quite a few friends off there, and there's so much less stress. I know it's a dating website, but lots of people make friends off places like that too.