I was struck by your cancelling the "next" session instead of planning ahead and knowing you wanted to make an appointment for the testing and knowing you have therapy each week and not discussing it and working with it. Do you have to pay if you take a vacation or are ill and give notice? You are allowed to not show up, it is your therapy! However, you are in therapy with your therapist so discussing what you have going on and how best to work it out for all the people you care about. . . isn't about power at all, but about sharing.

I don't think other people can take our power, but we can give it to them? If we are intent on hiding things and playing close to our chests, then we can't also be open and concentrate on what others are thinking/doing so we're likely to miss stuff and end up surprised. Usually such surprises aren't fun and, as is the nature of surprises, look like they just jumped out at us from nowhere. But the possibility was there all along, we were just too busy, with our back turned, trying to keep our own stuff secret/protected?