Just practice in front of a mirror sitting still and not fidgeting. It seems silly, but it will help you control yourself. Being nervous is OK also as long as you know your answers and don't get over nervous and start knocking things over.
I think most people interviewing potential employees, expect some people to be nervous. Just relax and be yourself. That's all they want Try to role play with someone prior to interviewing.
Nervousness is to be expected, so take time and take a few deep breaths before your meet the interviewers and right before you get started. Expect things to go well and visualize yourself having a good interview and things will go well.
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.