I want to travel more than anything in the world?

My name is natasha and im a 15 year old girl, since a few years ago my dream has been to travel the world when I get older and explore new things and try new things and maybe have a job in which I can travel a lot and do what I want. I've always wanted to be famous when I was little, and now I think about working with something that has to do with publicity and planning and just being out there and popular when Im older... How do I get there if my family doesn't have enough money, and Im not american? ( I want to live in america after graduation)