There are only so many servers that YouTube has access to that encode videos. Even if your video is only 7MB, the load might be high - there might be many other people uploading and in the encoding queue with much larger videos.
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.