2 year update

Ella had her 2 year wellness exam yesterday and she is doing great. She is 36 inches and weighs 32 pounds. This is 90th percentile for height and 95th for weight. She is growing so fast! She has always been in 90th range for both so we sort of expected it. She talks constantly and her favorite line is "Hey Mommy, how are you"? It is so "grown-up" sounding. She is definitely not a baby anymore. She is still doing well without her paci. She hasn't mentioned it lately and she has stopped crying at night when we lay her down. She has also gotten back into her napping routine so things are back to normal. My next big project is potty-training although and I am not ready for it!! She has been using it when she wakes in the morning and before bathtime but I can't really get her used to doing it at other times. Like today, she has a pull-up on and I have been taking her every 30 minutes to the potty but she doesn't go. Then as soon as we get off and her pull-up is back up, she goes. Does this mean she is not ready? Should I go cold turkey and put panies on her? Not sure what to do. Any of you with advice, please help! Every stage brings new challenges and she has done great with everything else so hopefully this will be as smoothe.