I assume if I suggest candy instead of stickers, it would be handing out a new battering ram.
It sounds like the regression week. That happens very often. I would liken it to "beginners luck" with a new sport. You think you are a natural, than you get lost in the mechanics like everyone else.
The good news would be, fumbling 'pottiers' usually get back on track within a few days. Some moms have told me this is when their child seems to get emotionally stuck. But your daughter sounds like she's just frustrated that things aren't going perfectly.
Sometimes, not often, I motivate my kids by promising to buy them a wonderful gift. At three they think a five-cent item is wonderful. But it could be something she treasures as a reminder of all that she accomplished. (Beanie, etc.)
Or, keep reminding her all day long, to concentrate on what she feels, and soon she will be able to tell when its time to 'go.' Maybe, go over the feelings she was having just before the accident as well.
Good luck (Again!)
