A Book Critique: Does my head look big in this?

There are always those moments in childhood where you want to become an actor, NBA star, singer, or a big-namer whose production is always on the spotlight. For me, it was becoming a writer and I was greatly inspired after reading this very witty book: Does my head look big in this?
As a critique, this book had no extraordinary literal merit, a lack of authenticity, but to an outsider it gave an image of a Muslim family living in the western society and personally as a hijabi it relates to the daily struggle in my life.

Summary in my own word (read below for my personal view):
Amal Mohammad Abdel-Hakim belongs to an elite and snobby private school where she faces prejudice as an only Muslim. Already the "odd" one from the crowd, Amal becomes a favorite target when she decides to show her Islamic Identity by wearing the hijab full-time. Amal being a typical teen battles with the daily "body image, shoulder-to-hip ratio, boys, rumors, crushes”" and have friends with everyday concerns. Her friend Eileen hatched from a strict Japanese family with laws of traditions and her blonde pal Simone thinks of herself as a “fat molecule” in life after she is harassed by the high school bully Tia Tamos and the “Mini Mes”. Tia and her cliché try her best to drive Amal and her friend’s crazy until they think she can take no more. From her former Islamic School, Hidaya she dearly misses her best friends Leila and Yasmeen is which throughout the book they have many reunions. Leila’s mother Gulchin is more persevered for Leila to earn a marriage certificate instead of a high school diploma whereas Leila wants to major in law soon. Yasmeen on the other hand is the daughter of a British convert and Pakistani father and is a major shopaholic. Gulchin scowls at Yasmeen for not shawling up and Amal stands up for her friend and tells her “It’s what in your heart that counts, Aunty”. Amal falls for a boy at school, but stands strong with her religion and faith and makes her entire school proud when she makes a great rebuttal at the district wide debate.
Personal views:
Well, truthfully there are parts of this book where you’ll be laughing out loud and there are times where you will be saying “Can it get any cheesier?” Over all, to the author Randa Abdel-Fattah she deserves a compliment for writing a piece of literature showcasing modern Muslims in a very humorous, but thoughtful way. I thank her for giving me faith that there are people out there who want to read about hijabis . What I didnt like about the book was that Ama ldoesn't follow many of the islamic rules(e.g the movies she watches). My absolute favorite part comes at the end of the book where she states: “All this time I’ve been walking around thinking I’ve become pious because I made the difficult decision to wear the Hijab. I’ve been assuming that now I’m wearing it full time, I’ve earned all my brownie points. But what’s good of being true to your religion on the outside, if you don’t change what’s on the inside, where it really counts? “
“I’ve been kidding myself. Putting on the hijab isn’t the end of the journey. It’s just the beginning of it”.