I don't know anymore...I feel lost after my AS results...

I originally wanted to study Biochemistry with a foundation year at university, as the only science I did was Biology at A level, alongside Sociology, Politics, and History. Anyway's fast-forward to results day 2018 and I find out I've got an A in Sociology (very pleased), C's in Politics and History (I wasn't disappointed with History as I hated it and with Politics I know I can get it up to an A next year), but then it came to Biology. I got an E. I looked at the paper and was like what? because I worked so hard at it the whole year and really enjoyed the course and my teacher said I should be aiming for an A/B grade. I found the papers ok and thought they were nice enough...APPARENTLY NOT (I actually got a U in one...A U!!!!). I feel so gutted like! I honestly don't know what to do anymore... I feel lost. Out of everyone in my Biology class ( 10 of them) only 2 passed (with C's, everyone else got D's, E's and U's) and in the other Biology classes at my school only a few got passing grades as C's also and the rest D's, E's, and U's. I feel like applying for Law again (as that was my original plan when I started my A levels) but I know that my AS results are too low. My school says I have to do History next year or I won't get back in next year to do A2, but honestly I don't think I'd get more than a C at A2 and no Russell Groups would even look at a C grade candidate for Law. Has anyone got any ideas? I'm so lost right now. Biology was my passion, but now I don't know anymore.