A protein shake should be taken after your workout but I caution you, as 20-30 minutes really isn't a lot of exercise and protein shakes traditionally have a lot of calories. You're probably not burning as many calories in 20 minutes as you may think....
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.