Well, you sound a bit less mature than I would expect at your age. I would have guessed you were still in high school. You need to consider practical choices, not just exotic careers that actually employ relatively few people. Doesn't mean that you cannot find something you enjoy, but you need to broaden your views, and think as an adult, not as a kid.
First of all, you need to be self-supporting, and it really doesn't matter whether that is by holding some fabulous exotic job or by waiting tables at a diner. If you're self-supporting, then you need to look at where you want to be in 10, 20, 50 years--what are your goals and dreams? Not just carreer goals and dreams, but LIFE goals and dreams. Okay, once you have at least outlined some of those, you plan a path to get from the present to the future you want, taking into account a realistic assessment of your strengths and weaknesses.