im good at all other subjects at gcse, grade 5 and above but maths I'm struggling, i was in higher predicted good marks but they moved me to foundation and it set me back ages because its easier to get a pass in higher than foundation and the grade boundaries are higher than i expected and i do well in the exams but i just cant get a 4 I am literally on the borderline for a 4 but the grade boundaries don't let me what do i do?