I 13 years old, but my hair is all white. What should I do? My classmates laughed at me for bullying me and asked my big brother and sister for help (dyeing my hair).

Then you may want to consider whether you often stay up late. If so, you should give up the habit of staying up late, and then ask your mother to help you cook more good soup to make up for your health. Soon you will find that your hair is much better and very dark. If you are not in the habit of staying up late, you should see a doctor. If the doctor can't tell you why, it may run in the family and won't hurt you, but if you still want black hair, you have to dye it.