I absolutely LOVE the period from 1-2 years. It is so much fun, they start to walk talk and be funny, their little personalities emerge. That said, today I found myself at the grocery store with a cart full of stuff, my 2 year old almost peeing on the floor, I had to take her and the whole grocery cart into the bathroom (I'd already paid for everything), then I had to plunk her on her potty (that I carry around with me), while she screamed "NO MOMMY I DON"T WANNA GO PEE!!!"... anyhow, she peed, felt better but kept screaming so I had to put her in my sling, tie her tight while I pulled my shopping cart out tothe car with a writhing screaming toddler! ha ha ha.
The one piece of advice that has helped me over the years has been that when they freak out, it is either because they are tired or hungry.... and not for any other reason, so when you remember that it's so much easier to be a good parent, because you don't start freaking out or being embarrassed that you have a terrible child or whatever, you just deal with it.