I'm the proud owner of "treatment resistant depression", so yes. I've been sad my whole life but I started having suicidal ideation in my late 20's.
I have a therapist and a psychiatrist so I am medicated and working on it.
Depressions sucks, but the SSRIs that I am on have wiped out my anxiety. It's like I am a completely new person. I can go grocery shopping without nearly panicking. Somehow I found an (ex) wife before I was medicated but dating is now not quite as painful.
But yeah, I still have varying levels of bad days and I don't know what happy actually means for me.
I liked the public ledger of contracts idea someone had. You use the public block chain to sign and store stuff like mortgages, that way everyone sees the same copy.