Ah, now I remember what our deputy headteacher was going on about... that really does suck.
Thank you so much for this post; hearing someone in the almost exact same situation as me is incredibly relieving. It definitely was helpful and seemed unbiased whilst I was reading it.
I, too, have experienced some personal issues along the lines of depression and whatnot, which has made it extremely difficult to focus on studying. I know the hard work is necessary for success, but I just lack the fundamental willpower.
Since it's so late in the year, I'm going to have to really think about it and discuss it with my parents (although I am almost certain what they'll advise). Whilst they have a fairly laid-back attitude, I can't help but think they'll see me as more of a failure than I already am; my older sister is at Cambridge studying natural sciences... and then there's me who can't get out of bed most mornings.
You mention having applied for the Sutton Trust (as have I), so good luck with that!
I didn't manage to get into the Oxford UNIQ summer school, although my hopes weren't significantly high in the first place.. however, I reckon if I got accepted, my motivation would have increased tenfold. That's just the way the cookie crumbles, I guess.
The area I live has some very poor colleges and a handful of decent ones. Right now, I probably attend the best of the bunch and also the one closest to me, so it'd be unfortunate to leave. There are some people in the year above resitting year 12 in the same school, but due to some financial reforms as a previous poster mentioned, I don't think it'll be possible for us to do the same.
I was really indecisive, like you, as to what I want to do in regards to university and a career thereafter. The subjects I've chosen mean the only degree I can really do is in English literature or psychology—which I wouldn't hate, but it's not something I'm passionate about. After a lot of contemplation, I'd really love to a course in either computer science or graphic design—or going out on a limb—veterinary science. None of these will be possible with what I'm doing now, so I'm going to have to really consider my options.
Annoyingly, I had doubts from the beginning of the school year as to whether I chose the right things. You just can't make an informed judgement until you're near/at the end of the course. Stupid darned system. I decided upon subjects I enjoyed/was good at during GCSE, and was very ignorant of what universities look for.
I wish you all the best with everything, and again thanks for your input