Well, I guess there's nothing you can do now... unless you want to repeat as and start with new subjects, although I'm not sure how that works. I guess you will just have to carry them on next year, after all there's no point in starting over when you're already half way through. I know how you feel, I also regret taking the subjects I took, but I can't change them now (unfortunately, so I'll just have to carry through one more year. Good luck.