I dislike my cat and I'm also scared of him
Why are you afraid of your cat?
He bites me very often and I don't like it.
If you dislike your pet, then you should give it to someone else or a shelter. Don't keep something you don't like.
I can't do that because it sounds so cruel, I will never harm animals. Even my cat deserves better than death.
Bringing your cat to a shelter will not kill it, that is an overreaction. Maybe a friend or family member can take the cat off of your hands.