Sounds like your T is doing it so that you can see why you do it, when you do it and how in the long term it is & going to effect you getting better.
When I look back on the times that I would hurt myself...it wasn't just me that I was hurting. I pushed everyone and everything away. After being in therapy for 4+years, it's only since my last meeting w/my T did I begin to see things in a different way. It takes a long time,TONS of help and reflection to come to that point. When that day comes, I hope you'll be kind to yourself! You're the one that matters most!