I just sent emails to both of my Ts that I won't go back. Then emailed with them occasionally for a while, went back to 1-2 sessions months later, and then gradually just moved on. With the last one it is still kinda open-ended, but we do not communicate currently. For me strength was not required to stop, more to not give in to the impulses when I wanted to reconnect. But as I said above I did give in sometimes, so it's been a somewhat non-linear process. I feel it is most similar to beating a habit for me, the stage when I am 100% certain that I want to quit/change it, but there are momentary cravings/impulses. I really find that when I have those impulses, it's not the T/person that I miss really, much more a fantasy and a certain (not necessarily healthy) mental state.