You can be confident without being sure. Confidence is trusting you’ll handle whatever happens.

Certainty is about the outcome and confidence is about you. Waiting until you know how something will go is waiting forever, because almost nothing worth doing comes with that guarantee. What you can have instead is a reasonable belief that whatever turns up, you will deal with it. That belief is built out of having dealt with things before, including badly.

Say yes to one thing this week where you cannot predict the result. The audition, the question, the application. Afterwards, notice that you handled it, which is the only evidence this kind of confidence runs on.