As for God, his way is perfect: the word of the LORD is tried: he is a buckler to all those that trust in him.
Proverbs 18:30
Confidence = knowledge = relationship.
Knowledge isn’t about the amount of information in your head. Instead, it’s about the level of intimacy that you have with that information…your relationship.
So a fake shortcut is to simply focus on the depth of your relationship with what you know, rather than on the breadth of what you know.
This applies to anything you’ll find in Creation: music, writing, sports, architecture…and there are many examples of people whose intimacy aka relationship with what they did was the secret to their success.
But the real shortcut is to focus on the depth of the intimacy you have with God, the Creator of everything.
Intimacy with God is the ultimate confidence.