I worry over things I have no control over, too. Sometimes I just have to get things out of my system.
If you feel you need to read something, try your Bible, Hon. Also, some warm milk and honey is supposed to relax you enough to make you sleepy. Maybe with the meds you've taken, it will take hold?
Good luck sleeping. I'm looking at a sleepless night, myself.
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Psalm 119:105 Thy word is a lamp unto my feet, and a light unto my path.