I too, have found things to be infinitely worse since coming to uni. There are a variety of reasons for this.
I always felt at school most of my friendships were superficial; we saw each other day, and thus, we were friends. As soon as I left school that was the end of most contact. I have three friends left from high school.
At uni, well, I still don't have any friends really. Sure, there are people on my course of I get on really well with and when there's a group outing I get invited, but on the whole I get left out when it's just a handful of people going. It's not lack of effort on my part, I talk to people, try and organize things etc. I have a couple of people here who are really good friends and mutual effort is made to keep the friendship alive (it's rare for me to find this), and a boyfriend who is amazing. But it doesn't stop me feeling lonely and sad. There are days when I just stay in bed all day and even the prospect of going in to class sends me to tears.
I've joined societies and stuff and even help run one; I just can't relate to most people in the ones I have joined.
I guess what I'm getting at here is if you're a social butterfly who's always been able to make friends etc, uni will be great for you and it will be the time of your life.
If like me, social situations are more problematic, it'll be tough. Not saying it can't go from one spectrum to the other, but on the whole that is my experience.
For me too, since moving out of uni halls and into private accommodation it has got so much worse. Mainly because I end up cleaning the kitchen, bathroom, am the only one to take out the rubbish and put out the bins; no one else has much sense of responsibility. I pay the monthly bills and it takes another month before people will give me the money they owe me. I also hate my room; it's downstairs and the girl above me is really noisy until the early hours of the morning and I've given up messaging and asking her to turn down her tv etc. All the noise from the kitchen distracts me and keeps me awake at night (The washing machine is loud, the microwave is loud and my bedroom is right off the kitchen) It gets me down, I hate living here. If I didn't live with one of my best friends I would have tried to move out somewhere else.