Just like Jessica, I am done transitioning mentally. I still have more physical changes and laser to go through.
I realized I was done mentally when I stop saying to myself, "Man I wish I was a woman." and now instead, it is "Gosh, I cant wait for surgery, having that sucks so much."
For me, being completely done with my physical transition will mean my papers are in order, SRS or GRS is done, RLE is done, and Laser on my face is done.