K.S.
C.,
I know how frustrating potty training can be. I used the exact same routine with my son and had a lot of problems. So when my daughter was 18 months old I took her and let her pick out a potty. I put it in the dinning room(the center of the house) So she was close enough to it at all times. I put her in panties all the time( no diaper)
I let her pick out her own panties. That made her Excited to wear them. I explained that if she pee peed in them we had to throw them in the trash and they would be gone gone for ever. I asked her regularly if she needed to potty and she would either say no or she would run to her potty. She has her own roll of tissue and I let her wipe herself first.I don't know why but that excited her too. She was completely potty trained by 21 months.
I think the key is to encourage without pushing. Make it fun....I finally potty trined my son by hanging a target on a tree and letting him try to hit it. My brother potty trained his son to go #2 in the potty with cookies. If you go in the potty then you get a treat.
There are so many methods that it is hard to say what might work for your little angel. If she is independent...try letting her take some of the control.
Good Luck!!!