I feel absolutely devastated as if the world is coming to an end now for me what do I do?

That's the risk you take. Sounds like a sketchy company if they don't pay for an interview that they requested, and set you up for failure in this way. Next time, ask for a Skype call or something if they don't want to pay up.

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.