Risk, then, is not just part of life. It is life. The place between your comfort zone and your dream is where life takes place. It's the high-anxiety zone, but it's also where you discover who you are.
I found happiness when I realized that as imperfect as I may be, I am the perfect Nick Vujicic. I am God's creation, designed according to His plan for me. That's not to say there isn't room for improvement. I'm always trying to be better so I can better serve Him and the world!
Once you accept that perfection is just a goal, screwing up isn't so hard to handle. Each misstep is still a step, another lesson learned, another opportunity to get it right the next time.
If we all could be a true friend to someone, praying and encouraging one person somehow, that's a first step in being part of making the world a better place.
Yet I also believe that when you do unto others, blessings come to you as well. So if you don't have a friend, be a friend. If you are having a bad day, make someone else's day. If your feelings are hurt, heal those of another.