Don't worry about 'how to grow up' or 'am I doing this or that right or wrong'. Growing up will come naturally as you become older, and those interests you have are your interests, no matter how old you are when you have them.
Nature has a way of showing you...........a RIVER of knowledge if you will...
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.