I might not understand the entire context but I'd feel fear, resentment and hopelessness. It sounds as if she was saying there's no help for you and that whatever you do, you can't get rid of anxiety and you just have to learn to live some sort of limited life because of it. And I wouldn't accept that for myself. A certain level of anxiety is normal but if it gets in the way of what you really want in your life, then going to the therapist means that you're there to get rid of it, change your thought patterns, deep-rooted beliefs that harm you, processing emotions etc. This acceptance approach makes sense to me when physical limits are the problem, for example the hearing loss, neurodegenerative diseases and so on but in case of psychological issues, I am not so sure the personality traits, temperament or how we process emotions are so fixed and unchangeable things. If I was supposed to accept "this is who I am", she would have to explain it to me on an objectively provable physical limit, like abnormal activity in some part of the brain, faulty release of stress hormones or something like this. Even then there are theories that support the idea of neuroplasticity.
I have a friend who is a psychologist and she told me they were taught that the startle response is something genetic and unchangeable but my own experience is that it changes for me depending on my overall physical health, how much I sleep, how much I eat, what is the situation etc. When I'm sleep deprived, anemic, hungry and what not, being startled feels like being kicked in the chest and it takes longer to calm down my heart rate, if I'm healthy, feeling good, I might jerk/freeze, heart rate increases and gets back to normal quite fast. So idk..
By the way, there is some French movie about people with severe anxiety searching for partners but unfortunately, I don't remember the name. Maybe it was Blind Date (2016) but I'm not sure.