In some ways this is a good thing. It is good if bipolar people get the medication they need faster, and can start living their best lives. But as someone who almost died to depression, the "help" out there is criminal. It is not a disease we have a cure for, in fact it's not clear to me it's even a disease in most sufferers, but a healthy and rational response to societal decay. I do not believe some disorders will ever be satisfactorily explained by individual-centric medicine, in the same way history will never be satisfactorily explained by great man theory.
Adopt absurdism. Nothing really matters and it's grotesquely hilarious at the same time. That might cheer you up. Occasionally.
Recently I heard Neil Degrasse Tyson saying that people came up with averages more recently than with calculus. It's not something people find relevant naturally.
Whoa now. That may be true within a strict scope of the "arithmetic mean" definition of "average", however, the idea of average as a 'concept' is much older. As an easy example, early references to agrarian yields (crop farming and how much food they produce) talk about average size of crop harvests, etc. Early tablets from Mesopotamia talk about average yield size, and those are dated 700ish BC.