There is a story about an old man who lived in a village who was constantly angry and grumpy. Everyone avoided him. They felt that his nastiness and vile words would rub off on them.
One day a rumor spread around the village that the old man had turned 80 that day and he was actually happy. So, the villagers went to see him and asked what had changed that he is finally happy.
He told them that for 80 years he had been chasing happiness and it was useless. Today he decided to forget about chasing happiness and just enjoy life and finally he felt happy.
Don’t let yourself be the person that everyone avoids because of your negativity. Live every day for that day. Don’t carry the burdens of the past, don’t worry about what you cannot change just enjoy the moment that you are in.