Songs have rests written into them on purpose. Silence is part of the music.

A rest is written down, counted and played. It is not the music stopping, it is the thing that makes the next note land, and a piece with no gaps in it turns into noise. Whoever wrote it knew the silence was carrying weight.

Leave one block in your week genuinely empty, then defend it when something tries to move in. Not a nap, not a backup plan, nothing scheduled. The rest of the week sounds different when there is one bar of nothing in it.