Voices - gift or curse? When will they stop forever?

When an angel defects - rebels against God - does it become a demon? Why would an angel rebel? Would I? I don't want to be a demon. I hear the demonic voices so that I know that I am nothing like them - they are pure evil and I am not. I am a child of God, I am good. In the past it was considered a gift to be able to discern the demonic. It's not a gift. Its a curse, and I have it. Schizophrenia is spiritual warfare. There's so much evil noise in my head. I want a clear, silent mind. That's the gift I want. It's happening now. I say, "I command that you shut up and leave in the name of Jesus Christ. I plead the blood of Jesus Christ, the blood of Jesus Christ is over me now and forevermore." It isn't working, it didn't work yesterday when it was happening badly.