One of the best parts of moving is shaking up your social circle and adding a new dimension to it. New housemates and neighbors are wonderful, and you might make a lifelong friend. You never know! That's the great part!
I went into the military right out of high school, and then moved back home wiht my parents during college, then was up in Alaska fishing and didn't have any home at all, then lived with my old college roommate, then a longterm boyfriend... honsetly I can say that I truly did not move out 'on my own', into a place that was truly my choice, until I bought my current house at 26. But the positive changes in my life since then have been amazing. I've become part of a real freindly community in my tiny neighborhood and feel -FINALLY- dare I say like a grownup? hahaha.
Have SO much fun! Good luck on the move! Keep that excitement going... it will help when you can't get that sofa through the door (or the window).