P Day update

I feel like a faliure. I need feedback from all my moms out there. Was potty training really hard for anyone else? I keep hearing all the time how you're not supposed to force your kids to potty train, but then how do so many toddlers do it so young? Grace was all excited this morning, I had decorated the bathroom and got out all the treats. She loved her new undies and even loved trying to go on the potty. But out of the whole day we only had two successes where she happened to pee while I had her sitting on the potty, she never once told me she had to go, and I found her trying to hold it because she didn't want to go on the potty. She was gung ho about trying and about treats and stickers and all that, but I think she just doesn't like how it feels to not pee in a diaper. By end of the day we were both a puddle of tears, she would start to pee (most of the times not on the potty) and then totally freak out and cry. I was really positive all day, I never scolded her, I made a huge deal when we got any pee in the potty, and still she hates it. This is by far my least favorite thing I've ever had to do as a parent! I am planning on trying again tomorrow. I am hoping that she just doesn't like change and doesn't like the feel of peeing w/o a diaper and that she'll get over that. Question for other moms- did your kids already know how to tell they needed to go pee or did they learn that as you potty trained?
Like I said I can tell when she needs to go now, she does this little dance, so I will use that to my advantage tomorrow. Today I would have her sit on the potty for like 45 minutes sometimes, she either wouldn't go or would only go a little and then get off and pee a ton in her undies two minutes later!! Anyways, this is all a big ramble, but Im doing my blog therapy for the day.
p.s the week I fast from chocolate for lent was NOT a good week to start potty training!