Don't do it, UCL is in some ****ty part of London (Euston), the students are really snobby and have a massive Oxbridge and even Imperial chip on their shoulder. The facilities aren't even that great, buildings are all really old and un refurbished, and the academics aren't even that amazing. It's good but not 4th best in the world good. Conversely I've heard Bristol is amazing. don't know much about the university but the city is lovely I've heard. I can understand if you're sick of the place now and want to leave but it's only really worth it if you were going to LSE or Imperial. UCL isn't much better than Bristol. LSE and Imperial are also in much better parts of London.