Yeaaahh, im doing my year 12 at the moment aswell
BUTTT in Blighty
Over here, I'm doing my As levels, i don't know what your equal is. From what i've learnt, these exams you do this year, are more important than next year (my A2's) as they are an indication of what your likely to do in year 13. So if uni, or airlines are going to look at any of your records then its going to be your year 12 results.
Don't work, its not too late just yet
, just get a maths tutor, and you'll be finee