carebear about turning 18

I turn 18 tommorrow and I don't carebear. Though I can now buy tobacco products, go to clubs, in-list, or register I don't exactly feel like anything is really changing. I am now legally considered an adult, though I still live with my parents. I think it will hit me when I move off to college more. I can now be charged as an adult for certain actions, so I have to really think out some of the decisions that I make a lot better than the way I have in the past. It feels like more weight is on my shoulders, and that tends to over take the new responsibilities that I have earned and makes them more meaningless to me. I disaggree with the 21 drinking age. Many other civilized countries have it at 18 I don't see why America can't. if they allowed on campus drinking at colleges that would for sure cut down the amount of drunk drivers on the road, so why not? If this law was changed 18 may mean more to me, but since its not i dont carebear.