Growing up?

Now that i'm 18 and in college I have, over the course of the past several months, since been contemplating what it means to become a responsible adult. The months leading up to college I had these ideas that when I got to college I would, like a microwave that just finished cooking a meal, DING! all of a sudden shirk my childish ways and don the new coat of adulthood.....Yep....I was wrong. But, I will say that I have learned a few things about being adult, the first thing being that there is much more to learn. But after that I learned that being an adult does not mean you have to "act" anything, or change your personality and always be serious and no fun. I think being an adult means that you implement the passage in ecclesiastes 3:1-15 into your life where the idea is that there is a time and place for everything, and what I mean by that is that as an adult you learn not that you have to lose your personality and resort to the mundane, but you just learn that there is a time to be goofy and have a good time and there is a time to work and be responsible. Now I am not claiming that I have this life all figured out and know how to be an adult, in fact I know I am far from it, thank God, after all im still ONLY 18, but I do feel that one aspect of stepping into adulthood is learning how to behave and that there is a time and place for everything and learning when those times are