Man can, indeed, act contrarily to the decrees of God, as far as they have been written like laws in the minds of ourselves or the prophets, but against that eternal decree of God, which is written in universal nature, and has regard to the course of nature as a whole, he can do nothing.
We all have talents that, sometimes, we never quite fulfill. We're all scared, deep down, but maybe we just need to lay it on the line and explore our abilities and just not be afraid of failing.