Your practice should be strengthened by the difficult situations you encounter, just as a bonfire in a strong wind is not blown out, but blazes even brighter.
There's a tacit agreement between myself and the audience that I will entertain them when they buy their ticket, and I've been the one that has screwed that up. Once in while I indulge myself and try something else, and I keep my fingers crossed that it will come out good and there'll be enough people who will enjoy it, but that doesn't often happen.