Confidence comes from consistency.
The first time I rode a bike, I was not confident, but I kept doing it, and I became confident. Riding a bike became fun!
The first I skied, I was definitely not confident, but I kept doing it, and now I am probably too confident, but skiing is my most favorite thing to do.
The first day in my FranChoice business, I was not confident, but then I kept doing it, and now 18 years later, I am a master of my business.
Confidence is earned through trial and error, consistency, patience and time.