What should a child without a mother do?

I lost my mother eight days ago. I was only 17 years old. You can call me cold-blooded, because in just one week, I feel that I have come out. Although I am sad, I know what I should do instead of indulging myself in sadness. Are you talking about yourself or a relative's child? If it is someone else's child, comfort him and convince him that even in another world, his mother's heart will always be with him.