Forgetting is a deeper memory. So, don't forget that everyone has their own journey, and there will be all kinds of passers-by in the journey. Every relationship, every experience, is the mark left by life. Whether the memory is beautiful or painful, it has already happened. Learn to thank everyone you meet or leave in your life.
It is not easy to learn to forget, because many unforgettable sadness and shame are unforgettable. Then, we need to treat the problem with a normal heart. Since it happened, it is doomed to be irreparable. When you shed tears when you miss the sun, you will also miss the stars.
When you are upset, you'd better learn to forget. Never mind the road under your feet, the scenery ahead is more charming.