You shouldnt use plater of paris for your walls for a couple reasons. #1 plaster of paris has the nasty habit of retaining much to much moisture to be used for compound. #2 it is much to weighty to be hung on the wall.
#3Plaster of paris doesn't have the gripping power that compound does so in esence you could wake upone mourning with half your wall on the floor...Not a good sight. If you ar in the market to mix your own compound instead of using premade they have a wide variety at home improvement stores, the mixing instructions are very self explanitory and on the bag.
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.