The end of an era?

Okay I know I'm not that old, but I am really starting to feel as if this is my turn of the century. After the following week I'll leave behind a whole lot of what used to be me. Confusing? Let me break it down for you.
I am literally leaving behind a lot of things; clothes and other belongings which I have gathered over the last 23 years. Those things form who I am today. From the first stuffed animal that I got when I was a baby to the pair of earrings I bought on holiday but broke after I'd worn them so many times, to last book I bought because I had to read it for school but hated. All those things are a tiny part of me and now I have to leave them behind.
But I'm leaving more things behind, and I've left some of them already; I've moved out of the flat where I was living with three flatmates. The flat where I first lived when I moved out of my parents house. The flat where I learned that if you get to close to a person they easily annoy you. Where I learned that most people are so much different from you that you can't always expect them to understand you. I lived there for three years. When you are 23, three years is a pretty long time. Three years is a big part of your life and I have left it behind.
Now I'm about to set off to a whole new environment. I'm not just moving to another flat, which would have been a nice change if I wasn't going abroad. And I'm not just moving to another city within the same country, which would have been no option at all. See, if you have lived in Amsterdam all of your life there really is no other place you want to live in Holland. No, I am moving to another country, with another language (in which I am writing right now, yes I am fully aware of that), and other food and drinks and habits.
It might sound a bit more dramatic than it actually is, but it is going to be a big change. And it is going to change me. And I feel that when I come back, well quite a few things that I have left behind will no longer be a part of me. They will be a part of what used to be me.