Just a Name, you've done a great job telling about what happened. I recently disclosed CSA to my T, I know how hard it is. Nobody expects you to be able to discuss details immediately, but a lot of work can be done from where you are at.

Be kind to yourself!! Take care of yourself, and the exhaustion (which is totally understandable), try to talk to your T about the SH at your next session, and really really consider her recommendation of the meds. It might help get over the hump, so to speak.