People really only think about this problem when they are under great pressure. Just like me, before I graduated from college, I never thought about the question "Why live". I worked after graduation, and I was under great pressure, so I began to think. Indeed, what are happiness and misfortune? In fact, there is no happiness or misfortune, just a comparison between one situation and another. Only after experiencing misfortune can we realize happiness; Only when you have been under great pressure can you be qualified to experience the ease of unloading pressure. So everything is symmetrical. The greater the pressure you are under now, the greater the happiness you will feel in the future. On the contrary, the children of Emperor Laozi have no pressure to reach for food from their small clothes, so they have no chance to experience what real happiness is, leaving them only emptiness.

Speaking of grades, you may still be a student. Haven't you ever been happy from the bottom of your heart because you got good grades? This heartfelt happiness is the purpose of your life now.

Of course, I can't relieve stress in a few words. I suggest you read some spiritual books, which will help you.