Like a seed bury yourself

Fears about uncertain future cloud my mind. But more than that i have failed to appreciate the potential i've within myself, like any other human being. Dr Hameedullah compares potentials of man to a tiny seed that turns out to be a colossal tree if nurtured well, and in the first place if it buries itself in the darkness of the mother earth.

How can i be so ungrateful to Allah and be hopeless of my in-competencies? I've to tell myself again and again. I've to be singularly focused on my growth like a selfless seed. I've everything at my service due to Grace of God. Yet this yaas, despair and irrational doubts...