After you download and install steam just go to the top menu bar Steam then Settings. There's an option that lets you stop steam from running when the computer starts just turn that off. There are other options there that you might want to mess around with too.
Just don't run it in the background when you are not using it.
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.