Pixel2Life is an awesome tutorial website. I highly recommend it. pixel2life.com.
I have always used youtube for tutorials as they show someone using the software and explaining what they are doing. You can pause the video and try yourself. For example: uk.youtube.com/watch?v=LYqJnv0ooNo.
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.