I think you may be expecting too much support via email, and it might have felt better to you to have a brief phone conversation with her. It seems to me you are making big assumptions about what your T understood and/or what she could have done and why.

I think support via email is difficult to manage for anyone-- knowing what the other person needs to hear based on their words, without any interaction to sense what's really going on. Much harder to "get it" via email than in person or even on the phone.

Are you often disappointed in your T or other people? I feel that I am, and what sometimes helps me is to realize that (first of all) people can be disappointing when you need support even when they really want to help. It's perfectly okay to feel disappointed. It's been useful for me to be okay with being disappointed. What also really helps me is to try to be more concrete and clear about what I need from the other person.