It's illegal to use fake IDs. You'd get in a -looot- of trouble if you got caught, and it's very likely you would since they'd probably do a backround check. I'd say just wait the half a year, it's better than having that on your record.
Getting caught with a fake ID has some pretty terrible consequences. I don't think that that is a good idea in this case. Maybe get your parents to write a letter to the volunteer shelters saying that you are responsible and can handle the work that they give you.
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.