Nail polish -Fake nails -Conciously resist it and it will eventually stop (willpower gurl!) -Cut your nails -OCCUPY YOUR HANDS! This is what worked for me! Whenever you get the urge to bite your nails, simply tap your nails against your desk as if you were listening to music, or do something else.
Hope I helped! Good luck! :-).
Read full below https://tr.im/greentopLink (copy n paste the above link in browser to open it) check the 1st and 2nd green linkz>>> there on top.
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.