I don't want to live with my mother anymore but I'm only 18, which is a minor in Nebraska?

Every time I see or talk to my mother I can only think about how she has mistreated me in the past, classical imprinting I guess. Is it possible to decide with whom or where I want to live? I believe if I don't escape this awful place I will kill myself (already attempted twice and failed because I fail at everything I do)