Status quo, Call to Adventure, Assistance, & Departure are all the beginning stages of the hero's development.The status quo is when Harry is locked away in his small more like a coat closet of a room staring out the window. Call to Adventure is when harry receives like a billion letters to attend the school of Hogwarts. Assistance is when Hagrid help harry get away from his aunt and uncle. Hagrid also helps harry pack and took him to the train station to go to Hogwarts. It changes Harry's life because he discovers his God father works for Voldemort and that he is famous in Hogwarts for defeating Voldemort as an infant.
Trails, Approach, Crisis are the next steps in the hero's development. Harry's trails are when he finally faces Voldemort but the younger version of him. Approach is when Voldemort attacks harry and he starts to defend himself. Crisis is when harry starts to get weak and Voldemort pins him against a wall. This changes Harry's life because it teaches him to be brave and to stand up for himself.
Treasure, Result, Return is the next few steps to my hero's development.