Many things can cause irregular menstrual cycles, the most common is for young women who has recently started their periods. It takes a while for your body to get used to your period and can take a while for it to become regular and settled. There are many medical problems also that can cause irregular cycles so if the problem persists then seek medical attention.
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.