I think its funny you think you're a failure reaching for the dummy on the second day you're home. Like you, there was "no way" my child was going to have a dummy - that is until my first night home from the hospital with a screaming baby of course!!! Like the others have said, this Mummy thing is really tough and whatever works is what is the right thing for your daughter.

Also, if you remember when you were pregnant your bubby was probably more active at night when you were quiet and she's just staying in that routine now that she's in the big wide world, but she will get out of it soon enough. I think Izzy was a couple of weeks when she did the big switch - which makes life a lot easier for you. Good luck!