I used to cry in my car after almost every session with my former T, and I usually called her even before I got home. We had 50 minute sessions. Now, with 90 minute sessions and a new T, it's easier because we can cover so much more and I don't feel rushed. It's still hard to leave because of all the stirred up feelings. Once my T walked me to my car because I was sitting outside in the lobby feeling miserable.That helped, but of course she can't always do that.
What helps most is knowing that I can email her that night or the next day. What also helps is coming to PC and starting threads!