I 've been in a deep depression for more than eight, yes (8) months.
All for material things. But a lot of material things at that.
I was told I have emphysema and didn't even break a sweat. So far.
The mind is complicated. I should be depressed from the emphysema.

Well, after this rambling/confession I wish to tell you that I started Lithium.
Which is not perfect, but at least, I don't think about sui. And I'm at snail pace better.
Maybe you need to try the Lihium.