I have tried pretty much every medication for my severe depression as well as mood stabilizers. nothing works what next as far as treatment goes?

Combination rx, ECT: Severe depression unresponsive to the usual meds is called "treatment resistant." strategies include maximizing dosages & "augmenting" with additional meds. Electroconvulsive treatment (ect, "shock treatment") is very effective in extreme cases, esp. If delusions are present. Short of this, i often tell patients that if meds alone haven't worked, try meds plus psychotherapy (safe, often helps).

DEPRESSION: Have a physical exam by a Dr. to know if you have a physical illness. If cleared consult with a Clinical Psychologist with expertise in multiple types of psychotherapy to help with ZOOM & a Psychiatrist for medication. Sleep is necessary to mental & physical health. If you aren’t sleeping well ask for a sleep study. For resistant depression Ketamine infusion is a new approach.