S.H.
Nora,
I am not a potty training expert just a Mom who is almost finished potty training my 3rd child. Here is my advice. Get the cloth training pants and use only those. I had to go to Babies R US to get mine as Walmart did not carry the size for a 3 yr old. I warn you they seem expensive but hey they are cheaper than diapers and pull ups. Anyway make a big deal about how she is a big girl etc. Let her help pick out the panties. Find a time to start when you are going to be home all day and can deal with the multitude of accidents that will occur. Make sure she can get to a potty easily it can be a big potty with a stool or a little potty whatever you decide to use. Monitor the time she goes to the bathroom to her first accident and approx how much fluid she took in (large cup of milk etc) Then ask her if she needs to go potty that often. So for example if she is able to stay dry for an hour and a half don't try to take her to the potty every 10 minutes or you are creating a power struggle. She is going to have accidents but I promise after a couple of days she will get it. I used pullups for outings and over night in the beginning and now I just take extra pants as we are down to maybe one accident a day. Overnight takes a bit longer and you can use a pull up or just be ready to change the sheets. I had to get rid of the diapers as they were just stopping the progress. My son knew it was ok to potty in those and they do such a good job of keeping them dry it didn't bother him to stay in a wet diaper. I also have a video of Elmo and the potty that he has watched a few times that seemed to get him motivated.
I think the biggest trick is that once you start you can not stop. If you start and feels she is not ready or you are not ready to stick to it she will be set back and become resistant. Just make the committment and stick with it and you will be suprised how quick it will happen. I didn't think my son would ever be interested but once I saw he knew what the potty was for etc. I just had to go for it. If you need support just send me a message. I know how frustrating it can be.
Best of luck!
S.