Good luck and enjoy it.
For me, we had a 2pm wedding in the church 150yrd around the corner.
As the future Mrs Kryton stayed at the inlaws overnight, I got very drunk the night before, woke up at 11 and cooked a full breakfast, and was disturbed by my best man at 1pm whilst I was watching some rugby whilst lounging in t shirt and shorts. Got shaved, changed and at 1:50 I was in the pub over the road knocking back a quick rum & coke.
I was a bit nervous in church until the last song (Jerusalem, in the tradition of Rugby worldwide sung at full voice) and then enjoyed the rest of the day, which seemed to be an effort in quaffing champagne whilst remaining sober enough to do photo’s, speeches, dances and meet & greet.