I can't get this one sad and disturbing image out of my head and it haunts me day and night- what to do?

Try watching few cute stuffs like teletubbies , cat videos or prank videos, try to divert your mind.

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.