I wouldn't last long with that kind of scheduling either! My t is in private practice and it's just her, she handles her own scheduling/billing etc. We confirm the next session at the end of each one, same day/time slot but sometimes weekly, sometimes every 2 weeks. Occasionally she texts me between sessions if she needs to change it for some reason. She's always so flexible when I want to make changes, so I try to be flexible too when she does!