Remember there are thousands of others in your position. Work HARD this year. BA aren't taking cadets now, but they may be by the time you leave school/college. I don't think anyone honestly knows exactly when. Apply for Uni this winter, it will leave you with all options open, and it only costs like £15. Remember that those lessons you've had already are loggable towards your PPL, and if you can, it may be a good idea to get some more hours under your belt. In my view, degrees and flying are not mutually exclusive. I have no plans to stop flying when at Uni, and UAS and normal flying clubs would be an option for you if you were at Uni, but wanted to fly. Consider a gap year. You're going to be in some job or other for the next thirty something years, so it might be an idea to enjoy being unattached for a little while longer. Good luck.
Forgot to add. British Airways are not the only company in the world. Many other airlines have been known to or are sponsoring after 9/11.