You’re only as good as your last performance.
Whether in singing, conducting, writing, teaching, composing, parenting, running, or any other action you complete regularly, it’s your consistency that matters more than a shining moment.
The way to get to consistency is practice and focus. A great performance can happen once by accident; to have three in a row requires determination and work.
Regardless of your field, if you can learn how to get to a consistent level of performance, your success is guaranteed.