Me too. I meditate every day and seriously... it was the thing that saved me. Meditation lets you see into the very nature of the phenomena of voices and delusions. It unmasks the demons in your mind.
They turned out to be nothing but a very very over active imagination. An uncontrollable need for me to have someone to talk to. I had the power within me to turn the demons off. It was and is still a challenge but with this new knowledge all my fear is gone.
In Buddhism the voices in your head actually are recognized as part of human awareness. They are called Maras. They are phenomenal play of your natural human awareness. The Ying and Yang. The Other.
I really believe that it's very healthy for a schizophrenic to study philosophies like Buddhism and Zen. Especially for schizophrenics. They are naturally adept at grasping these concepts and putting them to practical use.
A schizophrenic's mind can be beautiful once he has the knowledge of Mind Essence.
I recommend all the books by Chogyam Trungpa - especially
Crazy Wisdom and
Orderly Chaos. A must read for anyone interested in taming your mind dragons.
Take it easy. Peace.