Is it normal to like violence?
Depends.It depends
It depends what you mean by liking violence: enjoying it in fiction or sports is common, while wanting to hurt real people is something to take seriously. A thought or fantasy isn’t the same as acting on it, but other people’s safety and your boundaries matter.
Lots of people enjoy violent movies, games, or sports because the excitement happens at a safe distance. That doesn’t automatically mean you want anyone to get hurt in real life.
If you mean that you enjoy causing real pain, feel driven to hurt someone, or worry you might act on it, that’s different. Put distance between yourself and anyone you might hurt, and talk with someone you trust or a mental health professional. If someone is in immediate danger, contact emergency services.