If you want to go to college you should consider the various opportunities that the military offers, such as ROTC programs, academies, and military related scholarships. Many scholarship are offered by military related groups. If you enter the military with a college degree you may qualify to be commissioned as an officer, which starts as an O-1 and runs through O-10 (Second Lieutenant or Ensign through General). Some fields, such as lawyers, doctors/nurses, and others are only open to officers. Also, you should be aware that the various services offer opportunities for enlisted members to become "warrant officers," but usually only after years of top-notch service and schooling.
Whichever you choose, starting your life after school is a great choice and will serve life-long lessons. Less than 1/2 percent of Americans currently serve on active duty military. About 7% of Americans have served in the military at any one time in their lives. I am proud that I chose to serve as a US Marine, and am just as proud of my brothers and sisters in arms who have served in the Army, Air Force, Navy and Coast Guard. Best wishes