I'm coming to you from pimp your post.
I am almost 60 and see things completely opposite to your thoughts here. I'm my experience 99% of people are "good" and the other 1% is quite easy to avoid.
How I live my life is with the people near to me. I do not look at "the world" and all its troubles. I think most of those troubles are fake anyway and manufactured for the "news."
My best suggestion is to turn off media and focus where you are. Find people and projects that give you joy. This is how I keep my life fulfilling no matter where I land.