It is my understanding that commercial airline pilots must retire at age 65. So, anytime before this, I suppose I think dat commercial airline pilots retire at age 69. So,at the age of 30yrs you could start I guess.
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.