There is nothing we can do ourselves to change this global event. We are all powerless, and accepting that removes all worries. Go outdoors for a walk, enjoy your hobbies, walk your dog, read a book. When you wake up tomorrow, the world will be here. 

People have been saying it's the "end of the world" whenever a major war breaks out for millennia. It never was, and never is the end. This conflict will end. 

Stop doomscrolling, block out the media. They want you living in fear, they want turmoil. The media loves this.