Get your parents to call them and find out all the necessary information.
It should be every photo shoot you get paid if your photos make it into a magzine or commercial or w. E then you have intrest pluse with paid money. You only get paid if the agency can sell your photos, then pay should be how long the photo will last and whats being published, it can be either monthly or weekly, depending on what your parents decide but never feel stupid to ask quections with your agency" this is just my opinon starting off at 13 for modeling is kind of I would think difficult because of hormon changes so advise, keep your skin clean, moist with aveene and stay away from guys.
Hope this give you an idea.
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.