Thank everyone SO much for your replies. I got in T today, and I was about to talk about what we had planned, but I could not find the words to do so.

It was like I fell mute for a moment, and could not find my voice. SO needless to say, we didn't talk about what we had planned.
Although, it was not a completely wasted appointment. We covered quite a bit of ground, and I found out that my T is a lot more like me than I thought
It was a bit strange, though. We talked a little bit about cutting, and she asked if she could see my most recent ones. I didn't mind showing her, but she's never asked to see them since the first time I told her about cutting. I'm not sure what to make of that.
She said she wanted to see me again this week, so we have another appointment Friday. I suppose I shall try again to discuss what needs to be said.