I'm gonna put my views across to you as simple as i can. You're a idiot. You got into cambridge, loads of people dream about that, but they can't go because theres only so many places or they arent good enough. Because of you going and not even giving a **** and just partying and getting with girls, you have denied someone the opportunity to perhaps fulfil a dream. Not only have you let them people down, but you've let your parents down after they've put alot of money into your education. Tbh, its all your fault, and i dont feel any sympathy for you.
At least you recognise your mistake and take responsibility for it. I guess you're not sitting at home scrounging off benefits so you're not too bad.