Like a baby who learns how to walk for the first time, every time she takes a few steps forward and falls, she smiles, holds on to something to stand up, and tries again.
She may not perfect her walk in day one, or day two, but with consistent practice, after a week or two, she will be able to walk.
The same principles apply when she learns to ride a bicycle for the first time.
The same principles apply when starting a business. Consistent and deliberate practice, fail forward and positive attitude.