I attended a total of one community college and 3, yes 3, different universities (think you had a pain in the ass getting transcripts for your application?). I additionally spent several semesters as a part-time student, because I was working full-time. None of this mattered in my case; I got a pilot's slot, albeit throuch OCS rather than NROTC.
Get good grades at whatever combination of community colleges and universities you choose. Do well on your ASTB. Work, volunteer, play sports. Stay active in whatever capacity you want to. The Navy isn't looking for the shut-in video gamer types. These are all things that will help you reach your goal.