exam revision

I dont know how to revise

Make a timetable from now till your exams with everything you want to cover, allocate each topic to a date. U may need to allocate multiple topics to one date. And just learn the information, first make sure you understand it using booked, YouTube etc, before attempting to memorise it and do past papers. Since there isn’t much time till exams, you can use flashcards and notes that are already available online. You can find past paper and questions online as well. I personally like to use physics and maths tutor when I was doing my gcse and a levels