So I’ve had a dream of traveling and have done quite a bit in the USA but only been to like 3 different countries ( Mexico, Canada, Bahamas). I want to backpack for about 4-5 months next year and possibly circumnavigate the globe. My budget will be about 30k and was hoping to visit Japan, Thailand, possibly Australia / nz and Europe. My interests mainly are history, nature, culture food etc normal traveling things. Im a 35 yr old male btw and don’t want to party too much but love a few beers in a dark pub and live music. Do you guys have any tips or advice for this ? Is backpacking feasible or should I bring more stuff ? Is there an esim that covers multiple regions or will I need a new one for each country ? Thanks for any input.