I want to live in america - please help!?

Okay, im 13 and i live in England. ive begged my parents so many times to live in America, thats not gunna happen... So i was thinking that when im old enough and ive got enough money i could move? but what about visas and all that.. what would i have to do to stay there permenantly? id like to be a beautition, actor, singer and all that but simple jobs like bartenders or whatever there called would be okay to make a living while i work on a proper career. i just really need some advice, what would i need to do to stay over there, would i be considered as an immigrant and be protested against:/ for them like losing jobs because of me? i really want to live in america i think theres so many possibilites over there and i feel so trapped in england... :( i think the only downside to america is yellowstone super volcano but oh well :) PLEASE HELP i need proper advice :P by the way i have no blood relatives in america so that not an option :( thanks!