What's wrong with me

1st of all I know this is gonna trigger a lot of people and they are gonna hate me which is understandable. But please don't downvote this post,i seriously need help. So this incident happened with me(19M) 2 months ago. My father was going through some hard time. So he was crying in front of me.my mother too. Honestly this was the 1st time I've ever seen my father cry. But I felt nothing for them. No sadness,no empathy... nothing. I understand that I should've felt bad for them,but I really couldn't feel anything. It's not like I hate my parents. They do so much for me. I'm very grateful to them and i respect them a lot. But that day I felt nothing for them,no emotions. The next incident happened 1month ago. I'm very close with my one cousin sister. We share a lot of stuff with each other.so apparently her bf cheated on her so she called me and was crying. I was trying to console her but again I couldn't feel anything. I understand that I should console her but in my heart I felt nothing for her. When I shared both of this incident with my close friend she said that I'm a horrible monster and that I should kill myself. I know she's probably right. I understand people like me shouldn't exist. But I'm too scared to die, I don't want to die. I also recently saw a dream where I was stabbing my father to death. I saw the same dream 1 week later.I don't know guys what's wrong with me. Any kind of advice is welcomed