studied till i wanna cry lol

i managed to finish browsing through the physics notes and writing down the important formulas. read through waves and understand it but i dont feel like remembering anything from it since i have difficulty memorising the stuff from the rest of the topics.
i studied maths until i wanna cry lol. i forgot how sequences n summation, AP n GP and maths induction questions look like and how to do them...and im lost. right now i managed to read through till maths induction so im gonna go to sch and pia finish the 2 differentiation chapters (8&9) before the maths test starts at 9am.
the maths test will end at 12nn and i will have 1h 50min to study physics again.
hope i can get B for physics and at least D for maths lol... though it seems unlikely.