What is the legal age for me to be emancipated in ontario?

Im 18 year old boy, i was in a car crash when i was 8, and I Have ABI (acquired brain injury). I'm exactly like everyone else my age though. I never failed a grade (elementary school) or class (high school) and and graduated the same time as everyone else. I'm going to college next year, just like most people my age. I'm perfectly normal, but i kinda think just because i have ABI i'm falling under different rules to become legally an adult. the only reason im trying to figure this out is because after i finish college id like to leave my parents house and start my own Business