You can save it without publishing it but I think you can only do this once or twice. You want to hit the save unpublished button or a button similiar to that. It might warn you that you don't have enough content and get be flagged.
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.