Why doesn't anyone in this world understand me? I told people about my pain. Why do they just pretend to sympathize or laugh at me? I hate them.

Put yourself in others' shoes. You can't always fully understand others. In fact, every family has its own problems, and everyone has their own pain. Don't exaggerate your pain easily. Think about the people in the hospital and the families of those who died in the earthquake and typhoon. Learn more about the world and read more books. The pain of many people is that they read too little and think too much. You don't have to hate people who laugh at you. Turn this into a driving force for progress. In retrospect, you may have to thank them one day. They may actually help you become more depressed and brave, don't you think?