Come out whenever you feel you're ready. It took me a heated argument with my mother denying bisexuality doesn't exist for me to just scream about my orientation. Ignore what they say about you being immature with your orientation, you know you better than they do.
They're brainwashed by heteronormativity. Sexuality is really no big deal once you accept it within yourself, but I do know from experience how that hiding uncomfortable feeling feels. My mother was shocked and went into the comfy hammock of questioning if I'd even been with another girl, to which I confirmed I had been in a relationship with a girl for about a year.
Just tell them to take you seriously bc it's ridiculous to not. When you feel safest, come out.
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.