I would get second and third opinions (from licensed doctors). I expressed to my therapist I felt bipolar sometimes and she immediately let me know she didn't think I was, only that I tend to feel my feelings, whichever they may be, very strongly, and also that certain emotions, specifically fear, anger and immense sadness, are easily triggered in my memory, which I then feel strongly, and also rather abruptly too, giving it the feel of bipolarism, but definitely not near the magnitude of someone who really is bipolar. If you have talked to or know someone with bipolar disorder, then I'm sure you understand how severe it can get at times.
I wouldn't necessarily disregard everything a psychiatrist might say, but a lot of them do tend to dole out the medicine too quickly for me. Ultimately, though, if you're still not seeing any progress, not even the slightest, and as it seems in your case you went backwards in progress, feeling even worse, I would move on and find something or someone else.
And my gentle words for you are that acquiring emotional health is a long journey (I might even say never ending), but a rewarding one, and I am happy to see folk who are even open to becoming aware of dark hidden aspects of themselves, let alone actually seeking advice and support. It requires a lot of bravery and for that, I commend you.
Best of luck.
(I also haven't forgotten about that other thread of yours, but I do need more time to organize my thoughts for that one)