Overall as a teenager who's also an introvert, I give it a rating of 3 stars. Why not any higher? At points, the book felt boring to read. The same idea was copied and said multiple times.
Also, guys! Solitude for a long period of time is intact not good for any human mind! Humans are a social butterfly that do need to have interactions.
Although the author said not to judge people, she's also continuously judging people who like to drink and party? Er... okay?