Go for it, I'd say that you apply for a uni which starts half way through the year, then show her the uni saying that you think its the best choice for you, live with your partner, 6 months is a decently long enough period to get on your own feet and say that you're thinking of transferring to a different uni, which starts on time but a year later, she can't really do anything, but the number one thing I'd recommend is getting a job as fast as possible, the only real leverage she has over you is money, start applying for jobs right now and start saving up, if it really blows up their are funds available from the government for people experiencing issues.