I can sympathize with what you all describe, everyday life taking time from every day writing, and it happened to me too recently. I finally realized that if I took my novel seriously I had to make time for it, regardless of consequences. Now I've started advancing again, after a long streak of...
personally, I write the whole novel, and only go back to change things when it's plot related. Once I have that first draft I go back and read it all again. I make corrections to style and phrasing and smack myself over the head repeatedly thinking "What was I thinking when I wrote that!?"...
Really, any writer needs to ask himself "why"
Is bullying required in your story? Is it essential to your character? Could it just as easily be replaced with some other type of abuse? Is there some type of abuse that could make your character more unique, or that would fit better in with his...