Long hospital shifts teach nurses to save their energy for what matters. Steal that lesson.

Anyone working a twelve-hour shift learns fast that energy is a budget rather than a tap, and that how you spend the first two hours decides what is left for the last two. The skill is not working harder. It is noticing which tasks deserve your full attention and which ones only need doing. People who never learn it run flat out and run out.

Look at your week and pick the two or three moments that genuinely need you at your best. Protect those and let the rest be done adequately rather than perfectly. Notice where you spend effort out of habit instead of because it matters.