To be perfectly frank, it sounds to me like you don't know what you want to do in the Navy. PAO is almost certainly out of the question, and I do not recommend you diving into another designator, like NFO, that you don't know anything about and aren't passionate for. What's your degree in? Why Navy? Why military? What's your long term goal beyond a potential 4-8 year period in the Navy? What do you want to be when you grow up, because Naval Officer doesn't seem like that's your thing. It seems like a place holder until you figure things out.