This is a great question.
The depression is now in a moderate stage, and my energy is very low. Partial Remission? (After 3 years+)

I have just restarted with a T and am already planning when will be a good time to exit.
Or when will I have enough of my 'questions' answered and my "new normal'" established to move on my own.

This will be added to my list of discussion topics, centred around what is control and what is wellness.

If my therapy with this therapist ended today, I would trust that I would find another T as I know I need the support in dealing with my illness.

Would I be disappointed? Yes, and like any ending I could imagine grief would be a natural response.
It has taken me awhile to find a connection and trust, but if I did it once I can do it again.

As it is now, each session is an adventure in the landscape of myself, my awareness, mindfulness and emotions. The T is a great guide on my journey.
thanks for the question