I was sooo pulling my hair out over my son's potty-training saga. After what felt like months of stressing about it, I took the advice of others and just...let it go. I highly recommend the same tactic. If your daughter understands the mechanics of the process (how to pull down the pants, sit on the potty, etc.) then she IS potty trained, it's simply an emotional readiness issue. In a nutshell, my husband and I discovered this wisdom: If the child is ready, the process is easy and low-stress. If the child is not ready, it will be stressful and difficult for everyone! I agree with the poster who stated that just because YOU are ready to have her out of diapers, does not mean that SHE is ready. During some quiet time with your daughter, just tell her, "I've decided not to ask you anymore about using the potty. I know you know how to do it, and it is completely up to you when you are going to give up diapers." And then, even more importantly, MEAN WHAT YOU SAY! It will take the tension out of the whole situation. She WILL get there, have no fear, and you will be telling one of your friends "I can't believe it, she just decided she was going to go, and she did!" And just so you know, my son was 100% potty trained at 3 years 8 months, which yes, is somewhat late, but he was ready and we didn't have to go through the whole drama with the "pooing but not peeing in the potty," or the "using a pullup at night" thing. We waited, he was ready, it took a minor investment of time to sit with him while he sat on the toilet. Basically, what I'm saying is that if it is indeed a "potty training nighmare" as your post is titled, it is a nightmare of your own creation and hence, you can STOP the nightmare. Best of luck!