The author, not pictured, is a college student and has schizophrenia.Nastasic/Getty ImagesJules was diagnosed with schizophrenia at 19.She has seen often-scary hallucinations since she was 14.Treatment has reduced her symptoms, and she's now taking classes at Columbia University.This as-told-to essay is based on a conversation with Jules, an advocate with Live Your PosSCZible.