Vulnerability is difficult. I like the floor idea. You can also try writing things out to take with you. Worst case scenario, you give her what you wrote and she can read it herself. You can even print out this post to give to her. I think most t's understand that trust and vulnerability is difficult for many clients. I'm sure she would be willing to work with you on that... Therapy is a tough decision. You've taken a huge step just by going and keeping up with it. If you can manage to be as open as you are comfortable being with her in the moment, the rest will come.