Student Exchange Programs

im only 16 but i really love the japanese culture and would love to live there. for a job im starting modeling soon. but im also going to write books when im older for young teens. and there’s a lot of other things i like to do for a job. but i don’t know how to move to another country. im already starting to learn japanese but don’t i need like a permit or something to stay and live there? and i dont know how to find a job or place to live if i move there. i want to do a student exchange thing but no way my mom would let me do that or afford it heh heh