You might investigate if there is somebody who does transcranial magnetic stimulation in your region. This is reported to be much milder than ECT while essentially triggering the same region of the brain. Last I checked it wasn't available in California or even on the West Coast.

Also be very sure that you are getting sufficient essential fatty acids from fish oils or grass fed meats. It's very important that the fish or meat only eat wild plants rather than being caged or grain fed. I find lamb fat and sushi helps but not those pills you buy at the store.

I can't help think that the 'modern life' is killing lots of us but there's no way off the bus for most.

Keep researching and keep trying even if hope isn't available.