Fear is the soul killer

I think I'm afraid of success. Afraid of climbing up too high on my potential and falling off. Afraid of being more visible and therefore more subject to laughter and scorn. Afraid of giving it my all and my all not being enough. Being anonymous is easier. It's comfortable. It's the known. When will I finally work up the courage to put my full effort behind something? To work hard and get past initial failures and succeed? When will I stop being afraid?