u/Dliser_

I have finals in 50 days i wanna get 90% to go to a proper university (iam in high school) idk what should i do to get the grades that i want ihave 5 subjects mathematics, physics, chemistry, English and arabic i know what should i do in arabic and english the problem that idk how to get better grades in the other 3 idk if the problem from the way i study or the way i think about the questions

My grades are not bad but i won't get 90% if i still like this

So if you can help me guys i wanna know what is the most effective way to study and what should i do in these 50 days to get high grades as possible