Is it normal that i have to fake emotion?

I'm wonderful at faking emotion. I can be the most interesting person you ever meet and make you feel like I'm your best friend within minutes of meeting you. It's all an act. I personally find humans disgusting and don't have much use for them. I am very close to my family so I can use their financial success. I have a lot of people who think they're my friend but I don't care at all about them. I started fantasizing about murdering people when I was still quite young. I know I'm not a sociopath and I'm not naive enough to think I could of made it this far being one. I do have empathy for animals. I value them over humans. I think about death a lot, even picturing my own death. I do want to die but not because I'm upset, but because I don't see value in life. I see no use in sex or intimacy and though I have been in a relationship before, I only could stand it for a month before I left things. I don't know what I am. I feel empathy so I can't be a psychopath. I have no delusions or anything to imply some sort of disorder. I simply can't feel anything for anyone. It's so exhausting to pretend to care about people that I feel drained all the time. I think about telling my therapist about this, but she's so convinced that I'm a great person and an asset to the community, it would be nothing but a burden to tell the truth. I could even deal with that if it wasn't for the possibility she could dissect my mind and decide to put my in a mental institution. I'm just so tired of pretending to care.