I have found that some days just work better than others,lol! When trying new activities it really has taken my 2 a few weeks of the new routine to settle in, especially at that age. Sometimes we have decided to pull the pin and leave (in extreme cases) after a warning as it was causing me more stress to stay. I think that it is quite normal for them to be experimenting with pushing boundaries etc and generally my experience is that they love to do it to/with ME! Probably because they feel safest and are just seeing how things pan out or are comfortable with expressing their frustrating etc with you, ITMS?? It is hard tho and I find it really difficult to work through. Often new environments, changes in routine, people being sick, too tired, hungry (some strange wind) cause my 2 to act a bit out of sync so I try to look out for that too.
Sounds like you did a good job to me! Anyone who pretends it has never happened to them either has a NB or a FT nanny! Have a cuppa, sit in the sun if you can and try to find the love again (as I can be an elephant so I need to give myself a kick in the butt occasionally)
PS don't go thinking I am smug as I could have cheerfully given away my 2 yesterday!!! Easter eggs got me thru - so much for being good!