IMHO, "Confidence comes before success" puts the cart before the horse, and often starts a vicious cycle

Bumping this to add in a Browning quote that @Dr_Paprika shared in a different thread that I think is meaningful here:

As parents the hope is that our children learn to not be afraid to reach just a bit farther than they think is their grasps, and to know that failing with some regularity but sometimes not means you are reaching about right. My dad tried to teach that to me.

It come from a great bittersweet poem btw.