Have you ever lived in a different country? I mean really lived there, not just visited? Radically changing your environment can do very well in radically changing your conception of yourself. Does the large multinational corporation you work for ever give people in your department a chance to relocate? That might be a great growth opportunity for you.
I'm not convinced living abroad always engenders positive change. I lived in Japan for a year and I don't remember another time in my life when I behaved in a more unhealthy manner.
nothing engenders positive change. it only happens if you choose to make it happen for yourself.