hii. what grade are u at right now?

first of all, it is possible to get a good grade if u probably spend 3-4 hours just on math each day for the following few days. The best way how I revised was past paper questions (i cannot emphasise how useful it is) and SAVE MY EXAMS (our teacher bought it, so we could view the mark scheme also).

but, before attempting the PP questions, i would check the syllabus and go over the topics.

just in case u are stuck with any particular past paper question, go to youtube and type 'D. Math Academy' he has solved almost all past papers for IGCSE maths.

besides, PLS memorise the formulas! i have a formula booklet if u want, i can send it over to u.

if u need any additional help pls feel free to pm me!