I don't feel much of anything...

It's hard to explain, I feel the things like sadness or anger. I just don't feel love or any other caring emotion. I could literally do just about anything to anyone and I wouldn't give a single fuck about it. I feel like it's more than the depression. That it's this thing that has a grip on all of my pleasant emotions and makes me cut out everything in my life because I honestly can't handle being in pain from it anymore. I feel so detached from everything in life now. I can't even fake a smile anymore. I'm this black pit inside and I can't be fixed with any therapy or medication. What's wrong with me? Why am I so emotionally detached? Why is it all I feel is the rage and sadness? I would like to feel anything else just for a little while. It's driving me mad and I have absolutely nobody to lean on and help me feel human. At this point...I don't feel like a person anymore and I don't know what to do..