helpless children who have left their mother and are living with their grandmother ne

My mother has left, my father is dead, my grandmother is with my grandmother, and now she is ill and there is no one to look after her. My sister and brother are there. I have a small house and no money to buy food. I don't have money to do a favor. If there is someone who can do a favor, I will give a lot of credit to do a favor. My grandmother is suffering from pneumonia. Please help ??????????????