Stiff plans snap under pressure. Build yours with a little give in the joints.

Plans fail less often from being wrong than from having no room in them. A schedule with every hour assigned breaks the moment one thing runs late, and then the whole structure gets abandoned rather than adjusted. Flexibility is not vagueness, it is deliberately leaving space for the ordinary interference that always arrives.

Build a gap into your week on purpose, an empty block you do not fill in advance. Decide beforehand what gets dropped first when things slip. That way a bad Tuesday costs you one item rather than the whole plan.