Failure or Forgiveness?

How afraid I truely am of failure. I've learned this since we had musical auditions for Damn Yankees. The reason I don't express my singing voice as easily as I should is simply because I'm afraid of falling. Not afraid of what others would think of me, but afraid of what I would think of myself. When it comes to my talents, I'm far too hard on myself. I never sing in front of a crowd if I'm just sight singing, if I don't know the beat already. I can't seem to break out and dance in front of a group, afraid of falling and hurting my expectations that I have for myself. It'd be much easier if I could just accept my own mistakes and take my own advice, but it seems to be harder than I can wrap my mind around. Is it possible to be afraid of the two things that complete who I am as a person the most?