I got your private message and decided to respond here because it allows longer messages.
In order to apply for an MBA, you'll need to think very clearly about *why* you want an MBA. This is because MBA programmes value critical thinking, maturity and decision making, and what better way to gauge you on these, than to see how you're deciding whether to invest two years (and a lot of money!) in a business school programme?
Everything else- GPA, GMAT, etc are less important for young applicants like you and I, because they're not worried that you won't be able to adjust academically. Rather, they want to see that you can think critically and so still fit in well in class with your older peers.