S.L.
All 8 of my kids were potty trained before 3 years old and most did best at about about 2 1/2. I would not put a diaper or pull up on her at all and take her often, like every 15-30 minutes whether she asks to go or not and insist that she sit there even if she didn't ask to go. I don't mean to make it a battle but don't wait until she asks to go. It is an all day process so you have to do it all day. Very time consuming. I've written on here before about this and about a potty chair we got for our grandson who I was keeping and it's a Fisher Price potty that plays music. Our grandson loved that and hearing the music was almost all the reward he wanted. With my kids I did a sticker chart, a small gift at the end with one, marshmallow each time ( miniature one ) each time he went and other things with each child. Nothing that was major or cost much in any case. There may be accidents so be prepared and don't make her feel bad but let her know it's not the idea kindly. Most of the work is on your end. Don't quit if you start and don't go to diapers or pull ups if you want it to really work.