Is your current accomodation far from your previous accomodation? How about still going out with your mates from where you were staying before?
If that's not an option - as Inverurie Jones suggested - try societies or clubs, or what about the people on your course? Is the course quite sociable? If not, are there people who you sit with in lectures and stuff? Why don't you suggest to them to have a night out or something and see how things progress from there...
Hope things improve for you. I don't think that it will be detrimental to your other years - do you know where you are living next year yet? or who with?