it's not everyday that we're getting wed or turning 18

It is okay to fumble and make some small lapses in weddings and debutante's balls because it is something that we get to experience only once in our lifetime. To expect perfection on these occasions would be courting frustration. Nothing can ever be perfect. Any party said to be very perfect is still imperfect because I can imagine a "very perfect party" to be boring---dry, dull, and so ho-hum. A "perfect" party is one with a few imperfections that the party-goers get to laugh at these lapses. So, never aim for a perfect party for you will only be aiming for a boring one.