Here's a link to WHO's guide for "unhooking from difficult thoughts and feelings".
https://www.who.int/publications/i/item/9789240003927
It includes links to audio. It can be helpful for the experiences you describe
I made a PDF flyer with a QR code for
WHO's "Doing What Matters in Times of Stress: An Illustrated Guide" (How to unhook from difficult thoughts and feelings),
in case anyone would want to print some out and staple them to a local kiosk, at a local college campus for example. It would be better to learn about this earlier in life than later, imo.
Also free and relevant - a link to WHO's guide for "unhooking from difficult thoughts and feelings". There's audio you can download. It's not even an app.
The World Health Org has an illustrated guide that includes a more validated *how* practice to reduce stress. Their terminology is different. They discuss how to unhook from distressing thoughts and feelings. It seems like a better approach.
https://www.who.int/publications/i/item/9789240003927