I don't usually reschedule as such - only a couple of times if the woman has something or I have a work thing. She only works a couple of days a week, so rescheduling is not that easy. I do cancel for a week and then go the following. When I first started, it was like every two weeks I would quit, then miss a week, then call and go back. Now I don't say I am quitting, I just cancel a week and then go back. I have a set day and time. Now I do it about every month to 6 weeks.
Progress really.
I have found for me, that giving myself the space to take a week away, works well to reduce anxiety. Then I can go back less anxious which is good for me.