Are you too important to take a day off or a vacation? There was a time in my life when I thought I should be working all the time. In college I often took the maximum number of hours each semester that the school allowed, plus was involved in all manner of other activities. It took me many years to learn that was not what God required.
I was finally instructed by the Old Testament (Hebrew Bible) that God “rested” on the seventh period of creation, and commanded his people to rest on the seventh day, as well. The command was for their well-being-- physically, mentally, spiritually, and socially. It was not just for God’s people but for their whole society. In addition, God prescribed a series of festival observances during the year as more extended times outside of work. I learned that if I was to do my best work I needed time to think and process, not just flail away at my work.
Good sermons require time for thought and reflection. Good decisions require time to think through the impact of those decisions.. The old idioms had it -- “Decide in haste, repent at leisure.” As usual, God’s way always turns out better than our hasty way.