I liked the title much more than the book. I think it was ghostwritten by an adult, and it came across to me as self-conscious, self-pitying and manipulative.
That being said, I would feel sorry for myself too if I were a 10-year-old divorcee, living in a culture where it was considered borderline acceptable for fathers to trade their very young daughters to old men. I'm just saying that self-pity has its place, and it's definitely not in the memoir genre.
I gave up on the book about two-thirds of the way through, which I almost never let myself do. (Another strike it had against it was that I was reading it on the Kindle, which seems to put some distance between me and the book.)