My answer: The theme that keeps coming back to my thoughts is the fear of uncertainty; i.e. lack of security. I need to acknowledge that there are external conditions that may change that I have zero control over. Acknowledgement means stop fretting about it. E.g. worrying about a coming earthquake doesn’t help me. OTOH making sure that my home is reasonably earthquake -proof is something I can work on. So my tasks is find the things I can change, attack the cause of the fear I can.
On a more fundamental level I have to learn to embrace change. The opposite of uncertainty is not being overconfident, but realizing that (total) control doesn’t exist. Yes, planning is still important, including gathering the best information to base decisions on, but being attached to the plan under changing conditions just causes frustration. Plans need to change to eliminate the frustration from uncertainty.
* “10Q” is a series of 10 question to be answered between Rosh Hashanah and Yom Kippur