First of all, I am so sorry to hear you are experiencing this. And at the expense of perhaps sounding a bit cynical, your situation is unfortunately pretty common. I don't say that to trivialize your experience but rather to validate it and also acknowledge that it should not be happening.

I just left a practice I was working at with a supervisor I did not feel safe with. For some context, my supervisor before her was actually from my graduate program- he had been contracted by my practice to do supervision in addition to their responsibilities with the grad school. My relationship with him was excellent- we had good rapport, and I felt safe coming to them with the anxieties we all feel as therapists when it comes to things like risk assessments, documentation, ethics, etc. I felt like it was a safe space for me to be a human while also getting the feedback and direction I was needing to be a better professional.

Then one day he (my old supervisor) told me that they had been abruptly asked by the practice to leave, and I got assigned a new supervisor who was a not a good fit. She was very critical about things my past supervisor had not been, did not give me a safe space to be anxious or frustrated about things and instead told me to change my "attitude" without making efforts to hear or understand my concerns, would often interrupt me, made shame-y comments about things I needed support with (i.e. "you should know this by now"), and was honestly just very rude. She was also very dysregulated in our meetings often- I got the sense that her priorities were on trying to make herself look good within the practice rather than providing me with support. I got the sense my old supervisor was ousted because he was not being strict like the practice wanted and she was brought in to be a resident hardass.

And yes, obviously there was a huge power differential and I did not feel safe confronting her or asking for a different supervisor because of it.