Hey HT,
Thank you so much for sharing the story of your brother and yourself with us. I had a really good friend with schizophrenia when I was younger. Is that anything like schizo-affective disorder? I'm unsure. My friend meant a LOT to me, so I find myself really having a heart for this situation.
I can sense that you are having some pain in this too, but just know that I was in a similar situation to you in which my parents asked me to leave the house at age 15. Well, screamed at the top of their lungs for me to leave the house..... :( It's not easy being alone in the world, but it definitely made me a bit tougher on the outside and a bit softer on the inside. Much like a TURTLE! Ha... wasn't even trying for that there! :)
I am going to keep your bro in my thoughts and prayers and you too.