pink, I think it's hard to call one's T because it's making oneself vulnerable, showing the T how much you need him. So I think it is difficult to do and not in the same category as self-destructive behaviors like smoking and SI. With those you really just hurt yourself, not make yourself open to hurt from others. I think maybe you are trying to help yourself adjust to the one session per week, and trying to be strong, and so counting the days off helps. I always count the days off to my next session. It helps me mark the passage of time and show progress toward the goal ( the next meeting).

With my former counselor, I really liked to surprise her with my progress during the week. She was always suggesting that I do certain thing between sessions to help myself, and I was very resistant. She would say, "you need to tell a friend about this problem, so you can get some support outside of therapy," and I would say "no way," and then I would tell a friend in the interim and come back next session to "surprise" my counselor that I had done this thing I had sworn I wouldn't. I delighted in that, and it became a pattern we would laugh about together. So maybe you are trying to "surprise" your T that you were able to go a week without calling him, even when you thought you couldn't. Maybe he will be pleased with your progress and his approval will in turn please you.