How to cope with the impending doom?

This might just be the hardest symptom of anxiety to fight back against. Over the years I've developed a lot of coping strategies but this.. this is truly what a spiral is made of. The grip it has on me can be debilitating and I'm in a rough patch mentally rn so I need to fight it constantly.

Tips and tricks, resources and anecdotes, I would love to hear how you guys deal with this sensation.