I'm currently taking apus in my second semester and I'm having problems with understanding and analyzing the content. We are at WWII in the book and it is getting difficult to remember everything. It is most probably because the lack of studying I do but honestly I find the book incredibly boring. Everytime i pick up the book or my notes it feels just feel like empty memorization of laws and such. Right now I'd like to review everything from the beginning but don't how to start. Please help and give some suggestions or different sources.

BTW my worse problem is writing DBQs, often times i can't get good arguments down or give solid analysis like connecting and comparing different events. My teacher is seriously getting pissed at me because he notices this.