The negative state of world, on heavy repetition, is not what we need to be filling our heads with if we want to feel good. You are letting others (strangers-and not very intelligent ones at that) wash your brain with half-truths, sensationalism and divisive stories. Stories designed to do exactly what they are doing, divide our nation and divide our world.
There are many points in life where we have to do tough things. We try to make new friends, we try to recover from an illness, we try to recover our children, we try to get over something hurtful that someone said to us. I have found that if I keep trying to do those things, it never happens, or only partially so. But when I change my attitude to, "I am doing this well, it is for me, and it is happening now", truly amazing things happen, and that is the sweet spot.