Considering dropping out

I'm not really enjoying my degree at all and I want to switch courses to English but English at UCL is insanely competitive so I know I won't get approval. I should have dropped out before Christmas but I was just trying to get on with essay writing, now the UCAS deadline has passed so I'll have to apply for 2016 entry. I already took a gap year and I'll be 21 at that point - all my friends will have graduated. I also really love the uni and city and don't want to leave but I feel like I have no choice because the course is making me miserable. I've arranged to see a counsellor about the anxiety that all this has caused me so I can think more rationally about it. I would go to see my tutor but she teaches on the module that I hate and she's really passionate about the degree so I doubt she'd be welcoming to the idea of dropping out. Should I drop out now or stick it out until the end of the year?