Oh no! That sounds painful! I'm glad you didn't break your ass. Dryer sheets can be very slippery, especially when they're wet. It's important to be careful when you're handling them.
Here are a few tips to avoid slipping on dryer sheets:
Put dryer sheets away in a safe place. This could be a drawer, a cabinet, or even a high shelf.
Don't leave dryer sheets on the floor. If you have to put them on the floor, make sure they're in a designated area where people won't be walking.
Be careful when you're handling wet dryer sheets. If they're wet, they're even more slippery.
I hope you're feeling better now. And I hope you don't slip on any more dryer sheets!