Her downfall can be, in a sense, blamed on her father. Early in the story, Faulkner writes that she had no social life because her father was to a) strict, and b) protective. This protective "vail" did not allow her to interact with society and with men inparticular.
However, notice that when her father died, she kept his body, most likely not realizing what death is. So for to blame her father entirely would be denying the fact that she did not saee death as the loss it is; therefore, she is to blame for her downfall, both metaphorically and literaly.
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.