What meds are you on and which have you tried? I ask because there are something like 21 approved antidepressants and various other drugs they can add in if they're struggling to find something to work. Some people find that the first, second, even the 3rd drug doesn't work, it's trial and error as everyone is different. I know there are 2 that I know of on the forum who are on lithium, and I am on my 9th different medication.