Most of the insecurities will only leave with time, I'm going to go out on a limb here and say some might never leave you! It's got to do with human nature, it's like if you've been cheated on before, it's very hard to trust someone as much again, and of course the question always lingers will the new guy do the same? Unfortunately these things we can't know.
But as the saying goes "Only time can heal wounds! ".
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.