If you are aspiring to write a teen / young adult novel, my best advise is to read such books by published authors. When reading their work don't mirror their work. Pay attention to the mechanics, such as style, the level of description, story structure and plot formation, dialog flow, the first chapter, formation of plot twists, sub plots, character development, the antagonist, the big conflict, etc. These things drive the story and hook the readers' interest.
Hear are some suggested readings the are currently on Barnes & Nobles best sellers list. try them out. take the time to read them and take notes as you read.
Howl's Moving Castle, Castle In The Air, and House Of Many Ways are a three book series about a eccentric wizard name Howl and his young wife Sophie. These books waste no time with long boring descriptions. These's plenty a excitement, comedy, and chaos. The plot in each story is introduced in chapter 1 (this is most do for writers.) CLICK ON THE IMAGES
If you are writing a book about a relationship between boy / girl and an animal or fanciful creature, Life of Pi is a good book to read. CLICK ON THE IMAGE
The Twilight Sage books are excellent if you are writing a novel where the protagonist is the narrator. They are a good examples for showing character growth, weakness, and transformation. CLICK ON THE IMAGE
The books suggested are good reads for the educational aspects of writing, not just for entertainment. However, because they are well written, they will entertain you too. So be careful not to get caught up and forget you are studying.