The owner of burrito belle
Answer:
Gretchen has always been very good at math.
As with any author's decision to use 1st person, her intention most likely -- in this story -- was to get her readers to go along for the ride into madness and cultivate a certain amount of sympathy for the narrator and her plight. The constant use of "I" puts readers in the narrator’s head and allows them to empathize with her.
NASCAR and boxing and your risking some concussions