Sometimes it helps to just write everything down that's in your mind.
"The mind is a bad place to think. Put words on a paper."
Clarify of what's actually going on.
When you're done. What can you influence, what is out of your control, where can you speak your mind (or actually need to to be in peace) and what thinks will you accept.
Don't keep track of too many things, close the topics by either speaking about them, changing them, accepting them. Otherwise it's gonna tax you.