I've been pretty blessed with my path- I've spent the greater part of the last 6 years steeped in traditional ayahuasca (Shipibo) work and it has convinced me that there is very likely something at the root that is not biological/genetic/structural in nearly all cases (the exceptions being schizophrenia/bipolar). The issue is that nearly no one is so blessed to be able to take off for the months/years it requires to actually get there. It's a huge commitment, and to support the lifestyle needed to live free of deep depression can require more changes than most are willing to make. In any case I did not mean to denigrate your own journey with my comment and apologize for it- I am glad you've found something to get your head above water and live.