In the first place it is quite humiliating to get punched. I feel your mom shouldn't have spanked you. No matter what your age is, you should talk to her and let her know you are sad and hurt.
Make her promise she will never repeat this thing again. Moreover, you also make it a point not to push her to the brink of emotional outburst.
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.