Pre Wedding Emotions

I am getting married in less than two weeks.
I am getting married in less than two weeks.
I am getting married in less than two weeks.
This thought keeps repeating in my head, I can't seem to wrap my mind around this idea. I feel like an explorer walking down a gangplank about to step into a new world. I know that my experience isn't new or even uncommon; I know that countless people before me have made this same commitment, but none of that makes a difference in how I feel. It doesn't help that I'm so young, for goodness sake, I'm still in college and I still return home and live at my parents' for the summer, so this step is more than just into a new lifestyle, I'm also stepping out from a previous lifestyle that is the only one I've ever known, and I can never return.
What got me started in this line of thought, was the idea that I need to learn to stop asking my parents for permission. That doesn't mean I should stop respecting my parents, I just need to change how I phrase things, while realizing that their saying "no" isn't the end of the matter. This may seem really immature, as I write this I can't help thinking I sound like a child excited at the idea of freedom, but really I'm filled with uncertainty. I'm a mostly obedient child, so the idea of no longer being under the authority of someone else is a foreign concept. These last few days remaining to me before my life-altering event will pass in the blink of an eye, and all too soon I will be facing the world without the umbrella of parents shielding me from it. (On a side tangent, I just realized that parents are very much like an umbrella, in that they can protect you from the small mistakes you make, but if you do anything really drastic, i.e. criminally drastic,  they won't be able save you.) I am unsure if I'm ready for the responsibility and it frightens me a little. I'm probably just making a big deal out of a momentary emotion, I am away on vacation, as I mentioned in my previous post, and my dear fiancée stayed behind leaving me feeling a little less sure of myself I am without her loving support. No matter I'll see her again in less than a week, and I'll likely feel a bit surer then. Well, it's four in the morning again, (I need to stop these late night posts and get some proper rest) and I really should try to get some sleep. I've been reading a couple of books as part of my research for my story and hopefully I can share with you any interesting findings and how they pertain to my story. In the meantime have fun, while I relax in the sun.