Psychotic depression. What should a person do for treatment ?!

Psychotic depression. What should a person do for treatment ?

I did not know I was psychotic till last week when for no reason I started blaming my father for things that happened 30 years ago. I couldn't stop myself and didn't feel like it was me who was yelling and screaming. I really hurt his feelings and I have so much guilt associated with it. Now I am worried I could hurt myself as punishment. I feel really messed up in my head but dont really know what I can do.

Please offer suggestions that are helpful and sensitive.

3 days ago
On reflection I realized under stress feelings of persecution I tend to go off the wall and over react. Very often I offend those who care for me. I dont mean too and dont want too but when it happens I feel right and empowered at the moment to vent. The thing is, I dont feel in control. And that alone makes me depressed.

You did the first right thing by discussing how you really feel during those events.
I am in doubt if the forums are going to help you as much. I would strongly suggest talking to counsellor, mental health professional or psychiatrist.
Behavioral, cognitive and pharmacological therapy can improve your life significantly.
If you are thinking of hurting yourself or have a plan to hurt yourself...please call for help immediately.