Felling of lonesomeness

Since I have lost my family, I live alone and I feel very lonely.My mother passed away 18 years ago and my father married another woman and he has left me, he has never even called me.I don’ t have any brother and sister or any relative.I feel desperate I try hard to find someone who could understand my situation or could share some love and care for me.I have found a family at the moment they have had some financial problems and they has become homeless.I decided to invite them to stay in my house where I used to live with only myself. They are 4 people-parents with son and daughter.I hope they would understand me but it was precisely wrong.They did not understand what I want? They have never let me in their feelings—I am only a stranger for them.It  hurt me so bad my feeling was wreck and ruin and I become a major depressive disorder. However they have stayed in my house but I still feel lonely or lonlier. Oh God what I have done wrong? I just want to love or want to be loved.Sometimes I think to die is the best way for me cos no one really need me and the world does not turn grey because of my death. Anyway I will leave my house for them.Can anyone talk to me sometimes please, I really need friends….