It sounds like you are well informed and self aware. You also seem to have a collection of tools that serve you well. When you say you are in the happy zone 75-80% of the time, is that with meds or without? If it is with meds, there is a very good chance this will change. I would talk to your PDoc and tell him your intentions. Let him design a plan to get off the meds so you don't experience too many withdrawal symptoms. See how it works without meds.
From personal experience, there was a period when I was off meds, then i got a divorce, my life changed radically and I found myself asking for meds. Now I'm in my late 40's and my hormones are changing. I'm going in for a meds eval to see if I need to change the regimen.