Starting The Lovely Bones

We were assigned to start a new independent reading novel for English class. I picked The Lovely Bones by Alice Sebold. Most of what I've heard about this book is along the lines of "scary" and "disturbing", but besides those plot events, the writing itself is supposed to be really good. I'm a little hesitant about reading it just because the topic is really tough and a lot different from my usual YA science fiction novels. 

Just as a quick introduction to the book (for me and for you):

It's told by Susie Salmon, a 14-year old girl who is raped and killed. The killer so happens to be her (extremely messed-up) neighbor. Creepy. I was thinking that too. So then Susie narrates from the afterlife about her story, about her neighbor/serial killer, and about the lives of her family and friends. 

There's also a movie that was made. I'm not sure I'll ever want to watch it. Maybe you're interested. I think the book will be freaky enough to see an actual visual of it.

Also while I was searching up information about this book, I found out that the author, Alice Sebold, had a traumatizing past when she was raped in college. Terrible and horrifying.

I'm really afraid to start the book tomorrow. We'll see how it goes. I wanted a change in books so this is what I get. Please tell me if you've read it and if it'll give me nightmares. Then I'll make sure not to read it ever before I go to bed.