Without actually seeing the screen there are too many problems to diagnose here. Could be a virus, the video card or the screen itself. Just take it to a shop, they should be able to tell you.
I think your processor has when out, has it been overheating lately, your going to have to take it a computer shop, Computer Rentasons is the best.
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.