No, I haven't. My great-grandmother is of European descent and I have never actually been abroad. I wanted to study abroad in the U.S. during this summer vacation, but I was too busy studying for the entrance exam and didn't have time to do so.
I definitely recommend going to the US at least once. I don’t know if I would recommend living here, though. I’ve been pretty sheltered my whole life, but even I can tell things are getting chaotic. It’s kinda one of the reasons I want to live in Japan, actually. The high level of respect for others is something I wish was ingrained into US culture.