I've been in that situation, and meditation/silence actually helped me in a big way. I hiked out to a remote campsite and lived there for a couple days, alone.

I've been in that situation, and meditation/silence actually helped me in a big way. I hiked out to a remote campsite and lived there for a couple days, alone. No technology except an emergency GPS beacon. In daily life we're bombarded by things that can trigger negative thinking... in meditation/silence, my only anxiety was how other people would think doing that was weird. Instead of getting pulled apart by a myriad of negativity, I could finally focus on battling one thing. I've never had a chance to do that before: completely focus on one anxiety for hours without interruption. Embracing it destroyed it, like some form of semantic satiation.