amduk....Your trip sounds awesome! Have a great time!
I took a 9 week backpacking trip thru Europe when I was 27. While I had a great time, it was not transformative.
For me, it was not a matter of leaving my surroundings, but leaving all of my old ideas. Sitting outside at night rather than watching TV. Meditating...questioning. These are the things that have been trasformative.