Your ambition is admirable, but it doesn't sound like you've got all your ducks in a row quite yet: most MBA programs require the GMAT or GRE, plus several years of work experience. So you may need to slow down a bit, assess your goals and where you hope to study, and analyze the profiles of admitted students -- most schools have an incoming class profile that you can look at. See where they are, and assess where you are: this will give you a good idea how to plan the next couple of years.

Good luck!
Margaret Strother