I can't stop imagining myself stabbing my family members when I'm holding a knife in the kitchen
I'm horrified. Why do you constantly imagine stabbing your family members?
I fantasize about how their guts look with a knife in them
It is wrong to fantasize about killing your family. You should seek mental help for you thought before you harm someone.
Nah no worries. They deserve it.
I do not think anyone deserves being stabbed and I do hope you get mental health diagnosis before you act on your fantasies. I strongly hope you get help and try to be better and act appropriately with your family members.