We often misunderstand confidence. We think confidence is faking it until we make it, knowing all the answers, or just speaking louder.
Confidence is not something that we have. It is not something that we do. We are confident. Or we are not.
And as with every state of being, we have the ability to modify it with our thoughts. Good feeling thoughts about confidence create confidence.
In your corner,
PS: By the by, confidence is also not listening, asking questions, or appearing wise.