If it's not listed on your My Account page, then unfortunately you've completely lost it and will have to restart.
Depending upon what program you used to open it, you may be able to find a temp copy of it in the folder you last saved a document into. Open the program, select "save as" and find out what folder opens. Then navigate to that folder through your windows explorer, and turn your options on to view hidden files and folders through your tools menu.
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.