Lemme see how many different smartass answers I can come up with...
Probably. If I could go back in time and change one decision, that one would not be the top of the list.
No. If I could go back, knowing what I know now, I wouldn't have needed to join the Navy.
No. Doing it again would be silly, having done it once already.
No. If I were aware at the time of the other options and opportunities that were available to me then, I would have picked one of them.
But, if I were to go back, with the same circumstances that I lived under at the time, and having no power to change them , Hell Yeah, I would do it. Only, this time, I'd do it BETTER!!!