I'm sorry you've had so little success and am glad you're still trying.

There are a couple of times in my life when my doctors have said, "Look...let's just start from scratch with your meds since the results aren't consistent and it's hard to tell where your baseline is." Kind of a re-boot. This was always done as an inpatient for safety. Sometimes the meds we take actually cause depression paradoxically, but that's not necessarily the case for you. Have you thought of trying a different pdoc?

Oh...and welcome to PC.