Help needed

I am esther.I have two sons,one is studying polytechnic first year and my elder one is mentally ill..i am suffering from eye problem and arthritis problem since 7 years..so i could not go to work and look after my family...my husband left us before 4 years..my son is doing some part time jobs...and we dont own a house also..please he lp us to pay rent,for my sons studies and my medical treatment,i have a sister but she is also financially bad...please help this small and poor family...