Do you think it's embarrassing that I call customer service centers because I'm lonely?
No, it's not, but why do you feel so lonely?
I don't have any good friends that I can talk to.
I think you really need some friends that you can talk to. It's not good to be without human contact. Try to make some friends and develop some relationships.
I very shy, I don't know if I can do that.
It's very difficult to be alone and lack companionship. Maybe you could join a local club or a civic group that volunteers in your community? It seems like a good way to meet new people and make some friends.