You are not your fears. You are not your inhibitions. You are not your anxieties. These are merely things you have accumulated through conditioning. Just as you have you have taken them on, so can you cast them off. Become aware of them, face them head on, conquer them, and reclaim the freedom that was yours before they arose within you.
Take comfort in this fact: there is no such thing as an unconquerable fear. The feeling of liberating yourself by your own effort and action from your greatest fears is sweeter than the sweetest nectar and instantaneously reveals a strength and a power in you that you never knew were there.