well done for coming to find help. it can't be easy starting at uni, being so far away from home, but you did it. so that's something to feel positive about.
the fact that you've asked for help rather than trying suicide again suggests that maybe some part of you does want to live.
have you tried keeping a diary? sometimes it's hard to get over to doctors just how difficult it is to cope with something, so keeping a diary can give them an idea of how much something affects you on a day-to-day basis, and may also help to show the doctor whether anything particular triggers certain feelings.
one thing i would advise you is to avoid alcohol - not easy at uni i know - but it is a depressant and can make you feel very low, hugs, Judith xxx