@Picks
The premise is not dumb. True story, unless you yourself is hospitalized or some shit, they won't allow you to retake the test. There's always the choice to wait 'till next year to try again, but I doubt anyone would do that.
Also, from the look of it, she was a studious, diligent student, who was studying hard to get into a good/prestige school. Yet she freaking failed to get into that school because she didn't even take the exam, and now she has to study in an average, unknown school. Seriously, if people she knows find out about this, they will either mock her or pity her and she wouldn't like either of that, so it's understandable why she chose to change herself.
Anw, for someone who just failed her highschool exam like that, her reaction is rather tame and entirely reasonable.
Edit: also wow, I want half of her positivity pls