From one of the authors on the excellent website and newsletter Recommendo:
I started a “stress note” in my Notes app where I keep a list of whatever I’m anxious about. Anytime I add something new I reread my past worries and if they no longer matter (which is usually the case), instead of deleting them I apply the strikethrough style. There is something very calming and self-affirming in doing this, and as the list grows I actually find it very beautiful to look at.
I have an on again off again journal I have kept for the last ten years. And while it is gratifying to read about issues that consumed my mind that I’ve now forgotten about, the stress note that the writer describes makes for more short term revisiting, and has its own value.