There's an article on psychology today that talks about how Lithium and Ketamine together help treatment resistant depression. Maybe look into that? I personally am interested in Lithium as my pdoc told me it actually heals trauma in the brain. And that's what my therapist tells me: that all the trauma I've been through has actually damaged my brain. I would love to try and see if my brain can be healed and maybe I won't need my psych meds and could reduce therapy.