Means making more mistakes along the way. I've learned that to really push forward and make progress in career and in overcoming your fears, you must learn to be tougher as well and develop strategies to combat feeling bad when things don't work out. 

Recently in career and my personal life, there have been a couple setbacks, but I also know that my rate of failure indicates that I'm pushing myself out of my safe zone.  Something that I wasn't willing to do as much of before.  I'm proud to be learning at the rate that I am and I remind myself everyday that it'll make me a stronger and wiser person before long.