umm start revising ur notes and and try and spend 1/2 per subject per night just going over stuff u dont understand and just keeping it fresh in ur head. iono if this helps u but aboout 1 month before i hit exams i make notes on butchers paper in mind maps, then i stick them all over the house ( aka toliet fridge bedroom ceiling staircase kitchen), its usually just concepts nad key words but i fond that i recall alot faster in exams. iono try to learn in a way that u find intersting and u think u will recal in an exam. o and its not a bad idea about 2 weeks before exams to test urself with ur own pop quizzes or head to a library with a group of friends and just have a study session. it can sometimes be easier to learn things if u've discussed it cause ur forced to evidnce ur points. for maths practise practise. im sure ull do fine if ur already keen in starting to study.