How do I get over being scared of losing the last of my family?

My mom is all I have left. I don’t have any friends and the rest of my family I don’t get along with. I am scared that if she were to leave that I would have nothing left. I call her daily and tell her how my whole day went. Right now she is dating someone and she asks me not to call as often, so I Fluther more and I bought a TV and got basic cable, It helps a little but I still miss my mom.