Do you think this is bad?

The fact I have no conscience. I have done many bad thing, and I don't feel bad about it. Like a couple months ago when I was at school, we were waiting for the bus and right before it pulled up everybody was in a crowd. And someone pulled up my hood and over my head. (I thought it was this one kid named Gabe cause he does **** like that) So I turned around and punched the person in the face, that's when I realized it was a girl I know named Tori. And after that most people would feel sorry for the person and feel bad after that, but like normal I couldn't care less. (I did say sorry and do the normal routine pretend like I "cared"). Is there any way to make yourself care or get a conscience.