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.
Regardless of how bad things are, we still have hope, both as individuals and as a civilization.
No we don't. Evidence: falling birthrates is the society collectively deciding that live ain't worth it. Personally, I think this is the real reason why we don't see aliens - any advanced civilisation will eventually reach a point where it realizes that life ain't worth it.