Fear of yourself

I have been really coming to terms with my dreams and my potential, and I have recently discovered something about myself that I did not know. I am afraid of my potential: I fear being talented, being intelligent, being worthy. It seems that my fear is the reason why I am consistently so hard on myself and so full of self-doubt, because if I truly believe that I can achieve higher and that I am gifted and have a calling for my life, then what? With great gifts comes great responsibility. Is that what I am afraid of?