Missing one day is an accident; missing two is the start of a new pattern, and the two-day rule is how you stop that pattern before it takes root.
We treat asking for help as a sign of weakness, when it's actually the load-bearing structure that keeps everything else standing.
You don't need a perfect planner system, just one calm hour that lets you meet the week instead of being ambushed by it.
If you only rest once you've earned it, you'll never rest enough, because the work is never actually finished.