A book about a teen author who got her novel made as a tv show

[gandulf]

Hi everyone,

so I read this book few years ago and can't remember the author or title. It's plot was about a teen author who wrote a really popular novel series and her books got made in to a movie or tv show. This girl writes her book under a false name and add a photo she found from internet as the picture of the author. And when the movie crew decides to film the novel in her village so that she could oversee it, she pays someone else to pretend like her and she as an assistant. Any help would be highly appreciated.

Edit: I remembered something else. One of the character's(author or decoy, i cant remember exactly) name was veronica