Introvert

Emily Davidson has been an introvert since she was young.
First of all, an introvert is "a shy, reticent person" who keeps to themselves and tries to stay away from most social interaction.
Emily is also antisocial. The two are both really similar and easy to mix up, but do not get them confused with one another.
Back to the Emily conflict; Emily has little friends and spends most of her time indoors alone, playing video games, drawing, or listening to music. Or all three. Since Emily is only 15, she has no idea how to deal with this problem in her first year of highschool.
High school is just as true as stereotypes tell it as:
Freshmen getting shoved into lockers, Seniors being the rulers of school, careless teachers, careless students, terrible lunches, bullies, and all around chaos.
Along with her family pressuring her to do well, her anxiety buries Emily deeper and deeper.