needs help

[shinzoai]

ok so a little about me. i love anything asian but japanese is my favorite. im 16 and well be a junior this year. i want to go on a vacation there to see if i like it maybe during winter of my senior year. or after high school i need time to save money.
so i was wondering what area would be the best for an english speaking person. and what well i need to get and do before i go?
and some helpful sites maybe?
oh and to travel do you need a visa? i have never travel outside the us before.