Death stalks each and every one of us, since we will all succumb to its embrace. As far as your sleep problems, visions, and the like, you should seriously seek out some medical / mental health attention. Stop worrying about dying.
We all go through it eventually, and chances are at 16, you'll be around for quite a while longer.
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.