so, what do I do now?

I fucked up and now I have no chance of ever doing anything in university...so, what do i do now?

resign to my life as a failure?
what exactly do people who don't go to university do?
and how do they deal with all their friends passing them by, being smarter and faster than them?

I'm tempted to pull a good-ol first year hanging right about now. Seeing as its my last and all...