Sylvia Plath's "Daddy"

I like this poem much more than "Lead and the Swan."  However, this one is a bit confusing as well.  I appear to not be very good at finding the hidden meaning among poems.  After reading this poem, it was made clear that the voice of the poem talking about her Daddy is a girl.  I figured this out after reading the line "With my gypsy ancestress" and "Bit my pretty read heart in two."  I believe if the narrator were male, the word pretty would not have been used to describe his heart.  It confused me at the end how she starts to talk about how her father died with a stake to his "fat black heart", and how she has killed two men and has had her blood drank for 7 years by vampires.  However, I am almost positive she is scared of her father.  She mentions in the poem that "I have always been scared of you."  I REALLY think we should discuss thes poems in class!