Have you looked into non-pharmacological treatments like tDCS or rTMS? brain stimulation is safe and often as effective as drugs but without the side-effects.
Fisher Wallace for the higher powered more-supervised insurance-covered version.
I think if you get to magnetic stimulation then IV Ketamine has similar raw costs but less time and better success rates.
That said tDCS has helped me when I get negative-value spirals and I need to suppress/quiet that part of the brain a bit.