I’m very glad you wrote. I can understand why this is confusing and at times frightening. I can’t make a diagnosis on the basis of a short letter. But I can tell you that I doubt very much that you are suffering from schizophrenia. What you are describing quite eloquently is consistent with the symptoms of Dissociative Identity Disorder (DID).
Victims of abuse sometimes teach themselves to “leave” the situation by dissociating. When the abuse is extreme, they may create alternative identities to manage the emotional and physical pain. These identities are used to absorb the abuse instead of the victim and protect the victim in various ways. Some people develop only one such alternative “self”. Other people develop a whole crew to help them survive what is happening.
I don’t have words to express my sorrow that you suffered such horrific abuse. Do research DID and see if it fits. Regardless, please give yourself the gift of seeing a licensed mental health provider who is experienced in working with trauma victims and who can hear your whole story, not just a short letter. You’ll get better advice and some consistent support while you figure out how to go from here.
You are only 22. With good treatment, you can recover from the effects of abuse and live a long and healthy life.
I wish you well.