No one understands me, including myself. I want to die. Many people laugh at me. Why don't I die? What should I do?

Don't just say you want to die, life is precious.

If it's just anger, then I suggest you don't associate with these people, or go back.

Life may not be as good as you think, but it will not be as bad as you think. People are weaker and stronger than you think. Sometimes you may be so fragile that you burst into tears. Sometimes you find yourself gnashing your teeth and have gone a long way.

I suggest you ignore them and live your own life is the most important thing.