How to let go of obsession and stop thinking

Obsession means that everyone has something, some things and opportunities that we didn't seize in time. In order not to leave regrets, it gives birth to obsession and helps us achieve it better. Therefore, with obsession, we must redouble our efforts to make up for past regrets and become a better self, and obsession will naturally disappear. However, sometimes it will be annoying and even harmful to physical and mental health. At this time, we should learn to let go and let bygones be bygones. After all, keeping a good attitude is the most important thing. As long as you have a good attitude, you will not be confused and look at things optimistically in the future.