Sociopath?

Idk what I have but I can’t feel certain emotions like sympathy towards people, and I can feel thankful. Also I’m really detached from people like, you could replace/take away all of my friends and I would be fine. Like I could honestly (not to sound dramatic) kill someone and not feel bad. Too me my friends are just temporary people to keep me company. I’m also really unoriginal and I mimic other people and their ideas. Like when I sing I mimic the singer. When I draw I mimic another drawing. I observe how people act and mimic it to fit their standards and can switch my, like characters. Like with one person I’m serious and with another I can be super cheerful. I literally just watch other people do certain things and I act like them.

But I also feel like I want to help people and just listen to them when they’re sad. I’m a really good listener and I give good advice and cheer people up. I can feel happy and embarrassed and sad. But I’m also so detached from other people. I told my friend this and now she thinks I’m a sociopath and she is scared of me

What’s wrong with me? Help.