Although I cannot relate to your specific issue, like you said, I do relate to your general T issue. Approximately 7 months ago, I told T about a big issue I have. She has been a T for 15 years but had not dealt with this specific thing. She consulted with someone who had, read a couple books, and discusses it with me often. I have the best therapeutic relationship with this T that I have ever had with any T. For me, it was worth it to stay. We have learned and continue to grow together. Despite her lack of experience with this specific issue, she has been immensely helpful.

Also, every T has to learn to deal with issues by having that "first client" with that one "issue."

So, IMO, if you really value your T relationship, if she is really trying to learn, and if you feel that your are benefitting from your sessions with your T, then I would stay with that T for now.