I understand where you are coming from, and you are absolutely right in pointing out that our understanding of the disorder is woefully inadequate. And therefor

I understand where you are coming from, and you are absolutely right in pointing out that our understanding of the disorder is woefully inadequate. And therefore, the ways in which how we can treat / address it effectively, reliably, are limited. So you are absolutely correct that it can be, and often is, a crapshoot in terms of figuring out what treatment / approach would work for a person. It is frustrating. And I speak from experience too! It is hard to keep telling yourself, the next one will work, in the middle of depression when making the effort just to stick to the current plan seems like an thankless pointless task. Almost seems sisyphean. But., what we know today about the disorder is tons more than what we knew 10 years back. And treatment approaches are improving. Don't give up is the only useful thing I can say, having walked some of the same paths as you have.