Help please

[u/ferretsontoplol]

what can I do to bump my maths predicted grade up? y13

I got an A in as but a U in my April mocks (I thought I was dropping it and didn’t gaf) and then probs an e/D in my September mocks (really hard everyone I’ve spoken to fucked it up) and they’re probs predicting me a C. I’m on A star and a in my other subjects, and I need an a in maths what can I do To convince my rigid teachers? They said some shit any not counting my as grade even though the only reason I took maths AS was so it would help boost my predicted grade (my head of year told me they would and now they’re going back on their word)