Hey. Let me say by the way that I have no experience in this sort of thing, but I don't like to see someone in trouble.
Given your last statement, I would think it is very important that you do talk to someone about this. It's exactly what these sorts of things are, and that human interaction will no doubt help a lot. In general it is a very important thing! People who have more knowledge of loneliness will be able to help. I feel the sooner you get on with this, as hard as it it, the better it will be for you.
I had a summer girlfriend who went through hell in first year, despite having a boyfriend and lots of friends around. She just could not handle it at all. It is such a big thing for many people.
Are you currently in paid word to supplement your degree? From experience work can be a very good place to meet people, and if you manage to get a job within the uni itself you will be spending time around other students anyway. I know it can suck having to work a Saturday or whatever, but its extra pocket money and the other benefits mentioned. As I said though, maybe try and stick to jobs where there are other students from your uni.