There was no hero´s journey.
The point is that it is hard to be involved with her character. I don´t care about her, or the stormstrooper.
In narratology and comparative mythology, the monomyth, or the hero's journey, is the common template of a broad category of tales that involve a hero who goes on an adventure, and in a decisive crisis wins a victory, and then comes home changed or transformed. The concept was introduced by Joseph Campbell in The Hero with a Thousand Faces (1949), who described the basic narrative pattern as follows: A hero ventures forth from the world of common day into a region of supernatural wonder: fabulous forces are there encountered and a decisive victory is won: the hero comes back from this mysterious adventure with the power to bestow boons on his fellow man.
Since Rey's Hero's Journey is precisely 1/3 over, I'm not going to worry about that level of detail quite yet.
You have fun, though!