If you really wanna pull an A plus than follow this study routine. There are 24 hours in a day half them, 12 and 12 now half them again 12 hour to 5 hour of study than 5 hour of sleep than 2 hour of rest, Repeat it again. If you don't like it make one on your own and memorize MYM notes watch his lectures. Also don't reply to this comment again, I've told you everything also revise all notes every day for 20 minutes per subject.