Everyone wants confidence.
Everyone wants to have faith in themselves and their judgment.
You don't need to have all the answers to be confident.
Here is the trick:
Base your confidence on the knowledge that you can find the answers you need.
Ground your confidence in the knowledge that you are working towards a noble purpose - fulfilling your unique purpose in life.
As you focus on working towards your goals you will gain wisdom and experience, and this will increase your confidence even more.
This increased confidence will enable you to take on the next challenge in your life.