I dreamed that my relatives cooked and ate the newborn kitten, and I was very angry, and then I woke up crying. (dream interpretation)

The newborn kitten represents your budding hope. The elders have killed your childlike innocence by some restrictive means, and they are not allowed to express their wishes and grow up. You felt angry and wronged, so you cried. Considering your anger and the other person's behavior of eating the kitten, it may mean that your relatives promised you something, and then they broke their word.