Sorry to hear about what is happening empty space. (And sorry. I posted while that was being written.)

It must feel terrible. And on top of that you are not new so you have something established which I think would make it even harder.

Still what matters is your well-being. If you are getting destabilized by therapy and you feel it is intentional and harmful and not something you have control over, considering stopping (and possibly leaving) is really important to allow as a possibility. Made very difficult with an established relationship, but sometimes having a conversation about this type of thing is not enough or not possible.

I reached a painful impasse with a therapist that I had seen 3 times a week for years. But nothing could be done to remedy the situation. I had to make a choice between me or him. It was one of the more difficult things I've ever done, but looking back it was the right thing to leave. Our relationship had run its course and was no longer productive. The tangles were too much to work through and not worth the agony.

Luckily there was a colleague of his standing nearby and he turned out to be excellent and even better for me though I did not know that at the time. Should you decide to leave your therapist, she is obligated to provide you with appropriate referrals. There is a way out.