The author wasn't discussing overprescription, they were talking about an apparently common impression that mental illness is different from something called a

The author wasn't discussing overprescription, they were talking about an apparently common impression that mental illness is different from something called a "chemical imbalance". Their point was that neither someone for whom a little bit of adderall or antidepressants, nor someone like yourself for whom a full compliment of medications has helped is understood to simply have a "chemical imbalance", and certainly not one that's 1-to-1 corrected by drugs. Instead, it's the case that through some medications many people with mental illnesses of varying severities are helped in coping with or reducing symptoms of their illness. The point is that people "other" themselves from people with mental illnesses, telling themselves that it's just a chemical imbalance they're correcting. This change in many peoples' understanding of how therapy or their own brains works has unfortunately not reduced the stigma of mental illness, it's just something people have been telling themselves (as the authors studies show) to substitute for an admission that mental illness is ok and can be worked on.