Walter Chang traveled the world for 3 years and then made this video and wrote this on Medium:
Yet, traveling in this manner is really an educational experience and an investment in yourself. You get to see how other people live and how they view life. You also get time to reflect on your own issues from an altogether different perspective. In the end you may just come out wiser, more confident, and laid back.
If I had traveled the world for 3 years his video is the video I would have made too.