I once heard: “Only a fool troubles his sleep with his worries. In the morning his worries are still there, but now he’s tired.”
This is good advice. I rarely worry in general, but especially not when I’m about to sleep. I have enough trouble sleeping without adding worry to the mix.
Do what you can the evening before, and do what you can in the morning hours. But the night is yours, always. Keep it and treasure it. Don’t give it to demons like worry.
The Opportunity Machine 