For the sake of argument, successful exit would be something where you cashed out for a million or its something that's still running and making you 100k/yr profit.
It seems like a startup is something you can always do, but free-willing, low-budget travel seems to be the realm of youngish people.
I traveled a lot when I was in my 20s and lived overseas for more than eight years. A great experience for personal and work reasons, and one that I could not consider doing now that I have a family and a home.
Give yourself a year, by a cheap return flight to somewhere interesting with lots of opportunities for travel to other places (i.e, Bankgkok, Athens) and go ...
Good luck!