Should I come out? How?

So I am 18 years old, and I have been out to myself since I was 14. I have always been extremely comfortable with the fact that I am gay, but I have never told anyone or been with another guy romantically in any fashion whatsoever. I head off to college in a week and a half, and I feel like I should start telling people that I am gay before I leave. But the thing is, I feel ready to come out to my friends, but not quite as ready to come out to my parents. It's not that my parents are homophobic; their best friends are a gay couple and they are in favor of marriage equality. But I just don't really want them to treat me any differently. I am almost positive that they think I am straight so I think that they might. But around my friends I sometimes have had to restrain myself from truly being myself and I would like to come out to some of them. But I think that it is more fair to come out to my parents first. I don't really know how to come out, when the right time to come out would be, or who I should come out to first. Sorry I rambled, but does anyone have any advice/words of encouragement?