Congrats on the offer!! =) Don't worry if you don't know anyone yet. I'm a first year international student studying Psychology and the people I've met so far are amazing. I was really worried at first as well, but it turns out, they're all very friendly and are also looking for new friends. Plus, we're moving to a new campus in September, which is really exciting! Let me know if you have any questions, I'll try to answer as best as I can.