We make plans for the day and for the big goals behind it. Then the hours move, and we are not always sure whether we caught what we meant to catch.
Churchill put the tension this way:
The best generals are those who arrive at the results of planning without being tied to plans.
Winston S. Churchill, My Early Life
Planning still matters. The fixed plan matters less. What helps is seeing through the day, noticing where the plan gets sparked, and then executing what is actually in front of you, the same way we keep going when the pace changes.