Need some comforting works, how many people believe in an afterlife or feel they even know?

Only humans in our intelligence know we are going to die. Only humans in our arrogance believe we are special enough that we should live forever. Look, we are all going to die. You can't stop it. Once you are dead, you will not know it. You will know nothing because there will be no you anymore. Enjoy yourself while you are here and quit worrying about the inevitable.