Not ready for Grade 8 Music exam

It's in two weeks exactly and I still have so much to memorise and I'm still fumbling over notes - I doubt I will perform well in transposed sight reading or aural either.

I've been super busy with exams for the past few months so had very little time to practice - and my mum was having none of it, and made me register to take the exam anyway. I really don't want to do it because I know I'll fail. Any way I can convince my pushy parents?

this was me last year- my mum signed me up for it while i was at school. i wasn't ready and didn't have time to revise 20 pages of scales.

tell your mum that it's better you get a distinction than a fail- and you can always do it in a couple months time (use the academic value if your parents are strict about education- distinction means higher uni points). for the sight reading just try playing some of the other pieces in your book with your 3 pieces as practice if you haven't got a seperate book for it.

Tried convincing her, she insists I do it anyway. I'm just going to fail and say 'I told you so'