Go to account settings then click the mobile icon on the side if you want to change the number Facebook could contact you by/ the number you would receive text notifications from Facebook If you want to change the number that people can see go to your about me section and then click edit contact information (this will be available to the public).
Very easy go to profile and click edit profile where you can change your contact.
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.