Sometimes when we feel weak, or we make a mistake, or we fail at something we can think we are therefore weak, a mistake, a failure - broken. We seem to have short-term memories and we forget that we are more that our current feelings, actions or accomplishments. We are multi-dimensional. We can be strong and have moments when we feel weak; we can be prepared and still fail; we can be wise and still make a mistake. This is part of being human. Don't label yourself, forever and always, on the basis of a failure or mis-step.
Don't buy into the "story in your head" that you are just this or that. You are multi-faceted, multi-skilled and multi-dimensional. Imbedded in those dimensions is the possibility to have an "off" day, to not always be "on top" of things, to not always know what to do next. Just stay abreast of who you really are, all your life experience, all the compassion in your heart, all your ability to learn and grow. Don't sell yourself short! Remember this beautiful quote by Wayne Muller from his book "Legacy of the Heart".