1. The economy is killing publishing.
2. Nobody cares about it. You know. Not really.
3. The main character is a writer. The first scene is a conversation between her and her agent. No agent or editor will ever read past page two.
4. You know all that stuff they say about how "cream rises" and good writing is a book's biggest selling point? They lied. You have to have a technically perfect ms., it has to be interesting, well planned and then have something unique enough to make it stand out from all the other technically perfect ms. they got that day. And then be something they think they can sell. See number three. See number one.
5. People will steal it once it gets published.
6. It's not that good anyway. It's not The Girl with the Dragon Tatoo or Sunshine or even Twilight. Do you know how depressing it is to realize Twilight level writing is something you must aspire to? Twilight got published. I didn't.
7. Writing is a financially dead career choice. It wasn't financially dead fifty years ago, or twenty, or even ten, but it's dead now. If you exist right now with a manuscript in hand, you will never be more than a hobbyist. The most you can aspire to is being widely read by the people who still want books. There will probably never be another Stephenie Meyer, and if there is, it won't be me and it won't be you. Fact of life. If you want money, go be a doctor.