What's the most common personality disorder?

Yes. Just like with many disorders, people who are prone to having one are more prone to others. Just as a child with asthma is more prone to hayfever.

Those with ADHD are more prone to Learning disabilities Coordination and speech disorders Oppositional Defiance Disorder Conduct Disorder Obsessive Compulsive Disorder Depression BiPolar Disorder Anxiety Tourette's syndrome.

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.