My father was drunk and said he would kill my mother ... what should I do?

Are you underage? Can you record this situation next time?

1. Then when your father wakes up, show him that you are scared and ask his father to stop drinking.

If he doesn't listen and threatens you like this next time, you can call the police. I suggest you go directly to the police station. The police can go to your house immediately to test the fact that your father threatened you with alcoholism. What is recorded in your hand is evidence. Defend with the Law on the Protection of Minors and ask the police to enforce your father's misconduct. Or you can choose to live with your mother, or choose to live with your relatives, or police intervention can help you find other ways.

If you are an adult, get a job and move out. Go home to visit my father regularly.