If you're writing more of a hero's journey (which tends to be more of an external story, going out into the world and facing fears, ready or not, and growing from the process) then we highly recommend buying Save The Cat by Blake Snyder. He too, does a phenomenal job, breaking down the beats of the hero's journey and beyond. His book has the added bonus of being brilliant at explaining the necessary structure and techniques all screenwriter's should keep in mind. For that reason, I recommend it no matter which type of story you're writing.

If you're going to be writing a heroine's journey (which doesn't necessarily mean male or female, it simply means it will me more of an internal story of finding one's self, a personal awakening, and the courage to express it - for e.g. Billy Elliot was a heroine's journey) then we highly recommend The Virgin's Promise by Kim Hudson. She does a phenomenal job of breaking down the major beats of the heroine's journey and also shares loads of examples of well known stories that exemplified this universal journey.