Charlie, I'm in the exact same boat as you but with a month or so head start. One CDR at my unit mentioned that it might be possible to accelerate the process by going through some sort of active-duty equivalent of NBIT (they still call it NBIT there I guess), but that it was hard to get a slot and this involved more of a time commitment. Anyone know more on this? Otherwise, it sounds like I'll be an O-2 before I'm even qualified to do real work.
Did you go to INDOC yet? If not, before you show up take some time to famliarize yourself with rank insignia. You will be expected to salute all superior officers (in our case, that's pretty much every officer), and it's not immediately easy for a total newbie to pick out the difference between some CPO and senior officer insignia at ten paces, especially this time of year when everyone is walking around in these digital blues. Learned that one the hard way.... You might actually find it wise to show up in civilian clothes the first weekend, till you get the whole saluting thing down--expectations will be lower in that case.
Also, if no one as explained quarterdeck protocol to you, make sure you're up on that before showing up at the NOSC. Learned that one the hard way too....