Loneliness is a terrible thing.
Even in a crowded place you can feel completely alone. I know that feeling. Humans need contact. Need. It's like food, water, and shelter. We are made to be in small groups. So, you have your dad but that is too small of a group. And, I know how hard it is to make friends and be the outsider. So, I don't know how to help in that or how to find friends. It just seems like chance when you find people to talk to you, that's how it feels to me.
I wish you could have a nice voice to talk to you. Even just one. If you must endure the voices, I wish you had one that was friendly. It's interesting they are all older people who are mean to you. I wonder what causes voices to be the way they are. My voices don't have personality either but I only hear them one time and they go away. And, usually they don't say anything at me, just talking around me... So, I don't know.