My dad is always angry and screaming. What can I do?

I’d remove my self from the situation. No one deserves that.
Let us know your dad’s medical and mental status, then more thoughts and support will come your way

Leave, basically. That's about all we could advise from the amount of info you have given us. Wishing you the very best of luck.

Please fill out your profile.

Really, need more info.

How old is Dad?

Does he suffer from a Dementia?

Health problems.

If he is suffering from a Dementia, is this something new? If so, you need to contact his doctor. He may have a Urinary infection or needs medication to calm him down. If he gets violent, call the police and ask that he be transported to a hospital for evaluation.