Secondly, interpersonal adaptation. The difference between humans and animals lies in their social attributes. When they are in a bad mood, they can ask people around them for help. Chatting with friends can make you forget your troubles for a while, and chatting with people who have had a pleasant experience can also produce a pleasant feeling.
The third is environmental supervision. Beautiful scenery makes people feel happy. When you are in a bad mood, you can choose a place with beautiful environment. In the beautiful nature, you will naturally relax, or you can go to places that once made you happy, which will remind you of happy things.
Finally, cognitive adjustment. People have emotions because we have different interpretations of things. Different people have different emotional reactions to everything, so we can change our emotions by changing our cognition. For example, when we are worried about something, we can reevaluate it, look at the problem from another angle and change our rigid way of looking at it.