I think it has always been like this. We have always been on the edge of progress or total destruction. You may want to watch the Oppenheimer movie as the fears we have now about end of the world, were the same then, maybe even worse.
Throughout history people have worried about the end and while they are not wrong to have concern as there are just so many vectors to take us out, some self inflicted, we have survives and thrived. Fearing the doom scenario seems normal but we have been doing for so long despite doing so well on so many key metrics overall that I think this reality needs to be the focus. Although, I did read a paper once that said worry is just mother-natures way of ensuring we avoid bad things by making them uncomfortable. Maybe we all need to lean into the uncomfortableness as it will come to us sooner than later anyways.