Hey,
Don't blame yourself. You didn't mention how old your daughter was turning so I don't know whether she's a teen or tween?
Anyway, you didn't ruin it. It didn't go greatly, but hey, she had fun. Isn't that all that matters? Next time you know to be more organised, that's all.
I'm sorry, but I think you're a good parent, you know why? You admitted to any feeling of guilt and I think you need to remember that a ton of parents are worse and never admit to anything.
You tried. And you're great for having to have done that!
Have a great week

!! And take it easy.
__________________
"We're all crazy here" Cheshire Cat

Pippa xx