I HAVE JUST FOUND OUT MY BROTHER IS 18 HAS

I HAVE JUST FOUND OUT MY BROTHER IS 18 HAS BEEN HALLUCINATING AND TALKING CRAZY...I RAISED HIM MY MOM PASSED HIS DAD PASSED AND RECENTLY HE WENT OFF TO COLLEGE IN AUG. I ADMITTED HIM IN THE HOSPITAL... HE HAS BEEN UNDER A 72 HOUR WATCH... HE IS STILL TALKING IN RIDDLES SOMETIMES AND HE HAS SOME NORNAL THOUGHTS AS WELL HE JUST KEEPS TELLING ME HE WANTS TO COME HOME ALL OF THIS IS NEW TO ME THEY HAVE PUT HIM ON ABILIFY...I DON'T KNOW WHAT TO DO I HAVE A 5 YEAR OLD DAUGHTER IN THE HOME AND I WORK DAILY...I HAVE READ THAT THEY CAN BE VIOLENT. I REALLY NEED HELP