There is an expression: "can't see the forest for the trees." It means: getting so caught up in the details that you miss the big picture.
The big picture is good. That we have Life to feel feelings is good. That we have Memory to recall them is good. That Life happens at all is good.
There will always be things to change, always things to improve. That we try is good. Give yourself credit. Give our people credit.
We're all trying our best.
Some people that means raising a family, some people it means shooting up a school. Why we are is a mystery. Why we do, equally so. That we are is certain. That it is is good.
The way to peace is being peace. Begin from a peaceful perspective, believe in a peaceful outcome. That means highlighting successes, not problems. Focus on common ground, trust in each other, look for the positives. Focus on what's working. This is the way to a healthier future.