Plan from reality
Write down the days you can protect, including travel and transitions. Leave space around the sessions instead of filling every open hour.
Decide your fallback first
Choose a backup window before the week gets busy. When a session moves, review what is still useful rather than trying to make up every missed minute.
Review without judgment
At the end of the week, compare the plan with what happened. Was the obstacle time, preparation, recovery or unclear priorities? Change one thing for the next week.