Hello mossanimal: The Skeezyks can't comment with regard to your questions. I don't really know that much about all of this psychology business either.

And I'm old enough that it no longer much matters.

I've made a few do-it-yerself attempts in the past.

And I still deal with passive suicidal thoughts on a daily basis.
The good thing, in my case, is that I'm old enough I no longer have to fit in... and I don't. I just keep to myself. I guess I should be happy too. I'm married & while we're not rich by any means we're secure & we seem to have our health, for the most part. What more could I ask for? However, the reality is I'm not happy either. In fact happiness is not something I even seek any longer. What I strive for is simple acceptance of where I've been & of the way things are now.
I'm glad you have your wife & kids, a beautiful place to live & work for which you have a passion. These are great gifts. I send my best wishes with the hope that, in some way, you will also be able to find deep peace within...