What is your long term wish for this therapist? Is it that she help you deal with your relationship with your current T, or is it that she help you with your life? I might be inclined to interview her with the latter in mind, and focus on that, though also explaining your previous, painful therapy experience. I'm suggesting this because of this question: do you want to be understood foremost by your relationship with your previous T? Or do you want this new T to understand the real person of value that your current T doesn't seem to see?

I agree with the others that Rogerian therapy is a really good approach.