Thanks everyone for the support! So far so good with the urges.

I do have a T who is aware of my self-harming behaviors, and we have begun exploring them. I am still getting used to/learning to trust T, so I haven't voiced these more disturbing desires yet. So far T is very relaxed about the whole issue, and has never mentioned stopping it at this point. T says that eventually I will be able to choose more healthy coping mechanisms. I'm not sure if this is good or bad, as I almost feel that I have been given permission to continue self-harming for now.