Day 1 of Potty training

I've decided to try the 3 day potty method which is basically all about dressing them in undies (no pull-ups) and using positive reinforcement. Day 1 was rough! Things didn't go as smoothly as I had hoped. It just didn't click yet. I know, it's 3 day not 1 day, but I just hoped she'd get the idea at least. It was accident after accident and tantrums to put undies on...exhausting.