Your academic adviser should be able to help you best but just keep taking those science classes for now. It depends what your academic level is....do you mean by'12' that you are in 12th grade? You'll need at least Calculus 1 & 2 and some basic courses in chemistry and biology.
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.