You first need to really BE an actor. You'd need to have been training for several years at a really good acting school, and have had lots of experience performing with a good youth theatre company. When your teachers decide you're good enough to try for professional roles, they'll tell you and your parents all about agents and how they get auditions for their clients.
You couldn't just apply for auditions by yourself. And no-one is ever interested in a beginner who has not had many years of real training. Sorry, but it's a lot more complicated than you seem to 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.