I started developing schizophrenic tendencies between 17- early 21 too. From neglect and abuse in my developing years I'm guessing? I'm no psychiatrist.
Two years later I'm doing my best to turn it into "high functioning autism" instead of schizophrenia. It's not going too bad honestly but not perfect. I know the brain is plastic and I'll continue to try and try, I'll know I'll slowly get there since it feels more natural to me and how I was as a kid.
I was really afraid this summer that I was beginning to hear things again but it turned out it was my new drying machine which I was happy about. I don't see hallucinations anymore, has been about 2 years since if not more.
I know I can get there before 28, I must. Do not give into schizophrenia anon, fight it and replace it, there is nothing good about it. Do not structure your life for it but against it.
The strongest advice I can give is not to exist in your mind and try to talk to yourself as little as you can, that was where my hallucinations laid both visual and audio. Be everything around you instead of only yourself, be you with the computer when using one for example, not a person using a computer. Don't be walking in a forest, be one with it.
I don't know if that sounds basic or dumb but it really helped me. Don't despair. I keep my mind stimulated too with constant weather/nature sounds in my ear buds.
