It's important not to become too emotionally invested in your child's achievement of toilet training - this will only serve to upset you and, most of the time, actually gets in the way of helping children achieve this developmental task. Another suggestion re: your own 'frame of mind', try to look at today and tomorrow, take things a day at a time, and avoid looking too far into the future or wondering 'What if...'. Why? Because you'll only cause anxiety and worry for yourself, and you won't be furthering the cause. Now, from a practical mamagement point of view, what you are encountering is not that unusual in a three-year-old. There often are ups and downs, rather than an 'over and done' type of progress. Definitely have her sit on the potty - don't ask about this, do it. It will help, and the inconvenience at times will actually help motivate your daughter to make progress. Now, even when she uses the potty at your instruction, give her some small reward, and record her successes on some form of wall chart that she can help to design.You might use stickers (which she can select) to signify each successful use of the potty (at either her initiative or yours). And remember that there are many three-year-olds, girls and boys, who have not yet achieved mastery over toilet training. It's wise to maintain perspective on this issue.