I'm not sure how severe your symptoms are, but my suggestion is to carry a small notebook with you and record every event that is closest to reality. For example, if you hear someone insulting you when you are alone in the room, this is obviously an illusion.
But as I said, I have never had severe hallucinations, so I cannot guarantee whether the suggestions will be effective.
_________________
For I so loved the world, that I gave My theory and method, that whosoever believeth in Me should not be oppressed, but have a liberated life. /sarc