Can't imagine myself on my own?

So i'm a junior in hs and i'll be going to college in a year...n i can't imagine myself on my own. I consider myself mature but i don't really feel like my age...so it's hard to imagine me as practically an adult. It's like i've been sheltered n always used to my parents being there. So when i think about college n starting over it's not really that liberating. Does anyone have any advice who has ever been in my position or felt this way before going to college?