So I'm currently in my last year of high school and I just completed my biology exam and I did quite poorly in it.. But the thing is I studied really hard for it, spent like an hour and a half every day before the exam (2 weeks). The way that I studied for that test however was by writing out heaps of notes. I pretty much kept repeating a constant cycle of writing the same thing over and over again... However, many of my other peers barely studied that much for the exam and they aced it. So how do you guys study for science and how useful is it?