Congrats on making this decision.
The first session is to get to know each other a bit. My T wanted to know a bit about my background, and I'd say as much as I felt comfortable with. Also explain what it is you are currently going through, and why you have decided therapy is necessary. Then you can ask the T a few questions you find relevant. See if you can eventually learn to trust this T. If touch is important, maybe ask about her touch policy. If you need to have regular contact, ask about how you can contact her between sessions.

The first session is kind of like shopping around, to see if you can work together.