Do not fear mistakes
You can't be afraid of failure and you can't be afraid of success, because either one gets in the way of your work.
Failure is simply a few errors in judgment, repeated every day.
FAILURE, FEW ERRORS IN JUDGEMENT
Even when you have doubts, take that step. Take chances. Mistakes are never a failure - they can be turned into wisdom.
FAILURE, MISTAKES ARE NEVER A FAILURE