Wow that would annoy me too. I used to suffer from a lot of anxiety symptoms and can tell you for a fact that they can come and go, no matter whether you're tolerating them or not! A couple of years ago, I was really afraid of public transport, stepping on cracks on the sidewalk, and very self conscious. All of these symptoms have kind of dwindled away by themselves for some reason, but if someone told me to deal with them, I would have found it quite condescending.

To be honest, maybe it is not that she is a bad person. Some people have never heard of sticking out anxiety, and I know that for people who want to quit addictions, it's sometimes a concept that people talk about-- tolerating the feelings without acting on them. So maybe she has a background where that's something she stresses in therapy. But I think you should listen to yourself if you don't think it's a good approach. One time a couple years ago I tried out this lady therapist who told me to reduce anxiety through exercise (and wanted to give me a book about it), and she wasn't wrong exactly... but it just didn't feel right. I think a therapist needs to work with your values.