Feelings change from day to day. A training plan cannot depend on feeling motivated every morning. In part four, the business analogy turns to strategy: successful operations need systems that still work on difficult days.
You might schedule workouts as appointments, plan meals before you are hungry and decide in advance what a shorter session looks like when time is tight. These choices reduce the number of decisions you must make in the moment. A stressful day may change how you execute, but it does not have to erase your direction.
Try putting one repeatable system on your calendar this week. The goal is to make consistency practical, not to demand perfection.
When you miss a day, return to your system at the next opportunity. Avoid making one difficult moment the story of the whole week. A written plan can help you decide what to do before your mood tries to negotiate with you, and a flexible version of that plan can keep you moving.