Actually, I beg your pardon. It's only been the last 30 years that my life has been mostly non-productive, especially the last 20. Still, that seems like a pretty long time to me. And, for the society as a whole, a net drain, too.

I've given it my best efforts. Therapists have given it their (currently available) best efforts. What I've learned from the failure of my best efforts is limited to me and my lifetime. If therapists and the profession as a whole were open to learning from the failure of their best efforts, then that could affect and improve the lives of other individuals in the future.