How do you become a world traveler?
Either be very rich, or have a job that pays you to travel.
I traveled the world on the Company card. Some of the work was hard. Went were there was work to be done by them.
Get a passport, save up money, and book a flight. (Obviously you should also plan, and get any visas required)
Depends in your circumstances and lifestyle..
Get on a plane.
"hard"? yeah, depends how you're travelling. If you backpack across remote areas of the world, it's not gonna be easy
By traveling the world, but it may cost you a lot