Go Ask Alice is a 1971 novel by Beatrice Sparks that bills itself the "real-life diary" of an anonymous teenage girl. It has sold over four million copies, was adapted as a TV movie with William Shatner, and is still in print over 40 years later. I read it when I was in the seventh grade and was absolutely terrified by the searingly honest portrayal of what (I assumed) it felt like to do drugs.
Social scientists working on a decades-long population study have recently concluded that every single living resident of the United States suffers from a condition known as imposter syndrome, a psychological phenomenon in which people are unable to internalize their accomplishments, except for you, an actual fraud who is almost certainly on the verge of being found out by the people who only think they love and respect you any day now.