Your total score is quite acceptable. To improve your verbal, I would suggest gmat study guides, where different tests should be available to practice. Reading books is an excellent way to improve your vocabulary--try to pick books which interest you, but seem to be written somewhat above your standard reading level.
When you come to a word you don't know, try to determine the meaning in context of the sentence, but then look it up in the dictionary. A dictionary is a MUST. If bored, browse the dictionary--you'll be surprised @ what sticks in your memory.
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.