Okay, sounds good. So use this opportunity to practice being clean/brave and go to the session with her and tell her to her face it isn't working for you and you don't wish to continue with her. Almost instant spine :-)

When I was in my 20's on my first big job, I had to cover for the receptionists occasionally when they went to lunch, we had a "schedule" we followed. Well, the big boss man decided it was my turn, why wasn't I up there when I had had yesterday's turn. He started yelling/being "forceful" about it but I stood there, quaking in my shoes and kept telling him my truth and eventually he calmed down enough to check and realize his mistake (and apologize to me profusely :-) From then on I have not been afraid of anger! I still quake a bit but am always able to stand my ground and state my truth. It was one of the biggest/life changing incidences of my life.