I feel like an absolute failure and don't know what to do?

[Desdemona]

I already suffer from depression but I decided to go to university. I thought it would give me a new fresh start in life and I would feel better.
I am not fitting in with the people in my accommodation at all. I have tried so hard. They are nice people but yet they don't seem to want to know me as a friend. They have already made their friendship groups and just aren't interested anymore. I only get on with one of my flatmates. One of them is constantly on drugs and keeps trying to get me to join in. The other brings home a different man every night. She brings people into the flat about 4am, who then trash the place and attempt to steal our valuables. I was alone in the flat last night, yet some people who don't even live here managed to get in and started causing trouble.
I have one person I can sit with in lectures. But in my workshops no one talks to each other. I don't think it's because they are nervous either, they genuinely look like they do not want to communicate at all. A lot of my course consists of workshops so I am alone again.
My boyfriend and his girlfriend live just down the road (not together) so one day it's inevitable I will see at least one of them. Ever since he got with his girlfriend, he has been texting me saying he loves me and not her etc. He was the one who broke up with me. He caused the majority of the crap in my life, e.g. getting me pregnant at 17 and saying he doesn't want to know. I miscarried which pretty much made my depression worse. I moved on, was enjoying a relationship. So he started a relationship with the girl he is with now. He constantly begged for us to meet up. He then split me and my ex up by sending me dirty pictures (which I didn't provoke or reply back) but my ex saw them and felt he couldn't trust me. After this we did meet up, he dumped his girlfriend and said he will love me forever and just want to be with me. I was extremely happy but then I find out in facebook they got back together. He said he had to because she has mental problems, yet I was pregnant with his baby and that wouldn't even make him come back to me. So now everytime I go out, I feel so paranoid and anxious in case I see him.
I don't even want to be at university. My parents have literally forced me to do a Law degree. It's making me ridiculously miserable. I am the one who has to pay back about £40,000 debt for a degree I will refuse to use for a future career. I now have to stay on at uni though because I am in a contract with my accommodation. Even though I am leaving, I still have to pay rent until they find a replacement to take my room. If I leave uni, I will not get a loan, which means I won't be able to pay rent which means they will take my parents to court.
My friends are at a university down the road. They add lots of pictures of them on nights out with their new friends and it makes me so miserable. When I do manage to get in touch with them, they don't talk for long. I really wanted to go to that university but I was a million miles off their entry requirements.
I feel like a failure. I cannot stop crying anymore and I'm starting to wonder is there any point in my life. At the moment, I literally have nothing worth living for. I am stuck, alone and doing a degree which I really hate. What should I do? Sorry for it being so long!
*fourth paragraph, I mean my EX boyfriend!

[squirrel529]

Your confident must highly to your absence dismiss.

[willy wom bat]

i am very sorry about your very sad predicament. but firstly dump your ex boyfriend for good a waste of space. secondly you need to see a psychotherapist there very good at getting you life back on track. your defiantly suffering from depression and the accommodation your living in would give anybody a nervous breakdown. see a doctor has well good luck.