Wedding Regrets

So I've just had my wedding which was brilliant. There were some things we could have changed but overall it was perfect and everyone had a good time.
I'm currently regretting the night before. My bridesmaid and I went to hotel around 4ish and had a look around, went for dinner 8ish and then I said I'd wait for my sister to arrive with the grooms shirt and meet my Dad and Uncle ( who lives far away). By the time I'd had a few and my sister arrived it was really late and ended up getting back to hotel about 11.30pm.
Looking back I wish I had just had a chilled night in with the girls as they both were staying over. The wedding wasn't until 3pm the next day so I had plenty of time with them but feel I could have organised it better and feel guilty not seeing them more.I know I can't change it now and they were happy for an early night but just wondering if it's normal to go over things after the wedding and regret stuff?