HE diploma is equivalent to Alevels. I think first you need to do access to Higher education diploma then once you've achieved that you can do a degree. Heres a link: https://www.accesstohe.ac.uk/Access/Abou...
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.