Nothing you can do about it. Consider it a $45 lesson on never loaning money or things that matter to you to friends, family or anyone else. People rarely pay back.
Unless you can afford to give it as a gift, say no. A true friend will not ruin a friendship over a no.
You will be in trouble if you hit her and also if you threaten her. I would go face to face with her parents. They may be unaware of the situation, because your so called friend is afraid to tell them.
If they are decent people, they will pay you and make her work to pay them back. But in today's world, I wouldn't be surprised if they gave you the brush off too. But, it is all you've got left.
It also could be that if you go to her parents, it may suddenly reappear. Best wishes.
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.