Tjaldrum! I believe that we all differ in style when it comes to studying our lessons. There are people who are good listeners and have photographic memory so they wouldn't depend much on their written notes and books.
There are also people who cannot fully grasp the discussion that is why they would need to do a lot of reading. Actually, sky is the limit in learning so as to how many books you should read, it’s up to you, that in addition to your textbook. So whatever subject you are into, reading is very important not only inside the classroom but also at home.
You will need to refresh and back up what has been taught to you by your teacher. So that when you’d be asked about anything, you are ready and it feels good to get an excellent grade, always.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.