I've done art all of my life. I'm doing a Foundation Diploma right now in it because I thought that it's what I wanted to do and that it would prepare me for university, instead, it's completely sent me the other way. I now can not wait to get off of this course and go study English Language. I'm not at the BEST university in the world, however, they offer a work placement, their modules and course are perfect and interesting, and I also get to study abroad. It's a really good course and I can't wait for September. If I were to do art (like my mum and dad wanted me to do) I'd have hated it, and I'm really losing my enthusiasm for it.
My advice is, go through clearing or extra. Do what YOU want to do because it's you who'll be paying back the loans at the end of it all, not your parents (I assume). Think of the skills you'll leave with, they're pretty much the same as English. How to analyse data, record data, write essays, communicate well, etc. I can't see a lot (or even any) differences in the skills which you'll gain from doing English compares to Psychology, which is what most employers will be looking for, on top of work experience etc. You degree does count, but it depends what you're wanting to do with your degree. Just go through clearing, or if you're feeling brave and fancy paying upto £9, then take a gap year and save up some money for uni, then reapply.
Good luck.
PS: I've just twigged that you're already there doing English. Can't you ask to switch courses? I aren't 100% sure if you can apply through UCAS again and just drop out of the university. Speak to Connexions or a tutor at the university that you're at.