Have you been medically diagnosed with it? I was diagnosed there in january, had no idea, i just thought i was an over-emotional over-moody cow. But then it became worse cos i'd be talking to a lecturer and he'd make a suggestion as to how i'd do an assignment and i'd start screaming at shouting at him claiming he didn't think i was doing any work at all. Stress seriously doesn't help.
I found seeing a counsellor helps an awful lot. Mine has helped me heaps this year in keeping myself under control. Yeah it drives you crazy, but people can help. Seek help first before doing anything drastic.