Give your old guitar a good cleaning. Lemon oil the fretboard, polish the body, and put some new strings on it.
It'll give you something to focus on. That, and you won't be messing with the old one for a while.
You can hit the local guitar shop and pick up some supplies while you're waiting too. A new cable, strap, strings, picks, a tuner, song books. You know, the basics.
Good luck. The last couple of days are a killer.