You have basically three options:
1) OFFICER CANDIDATE SCHOOL: Complete your college degree, and earn your Bachelor's (in whatever degree you are interested in, just get the best grades you can), and put together a package to apply to become an officer in the Navy or Marines, and pursue becoming an aviator.
2) NROTC: Through a participating college, attend NROTC classes and complete your bachelor's degree. Your senior year you will go through service selection, where based on your GPA, participation in NROTC, you will find out if you made it for the aviation program or based on the needs of the Navy, you have to do something else instead.
3) USNA ACADEMY: Put in an application to go through the Naval Academy, go through those four years of "fun" and get your commission, same thing, senior year, go through service selection to find out if you made the aviation pipeline or not.
Those are the "quickest" routes available to you, for others like myself, we enlisted out of high school or whatever, and worked our ways up the ranks, and got commissioned through various programs that would not be available to you.
Hope that helps, best of luck.