Since you posted this in the officer section I am assuming you want to be an officer. If you want to apply for Officer Candidate School, stay in college until you get your Bachelor's degree because that is what you will need to apply.
If you want to enlist then go to a local recruiter and start the process. Your core classes should transfer to most schools. If you are looking for a specific major, keep in mind that depending on where you are stationed, it may be impossible to complete at your station.
Life is hard. It's even harder when you're stupid.