First off enjoy your day. Sounds like great day planned. Next does your wife understand that you just need a little time and is this because she doesn't want to see you dressed kind of thing? Reason I'm asking is I learned 90% of my makeup and dressing from my wife being present and helping me get dressed. Your circumstances maybe a DADT type, which to me is not the way I would want it but every one to theirselves on it. Again enjoy and have fun.