Are you familiar with the "Knots" prayer? It's a keen insight from an unknown author.
Dear God: Please untie the knots that are in my mind, my heart and my life. Remove the have nots, the can nots and the do nots that I have in my mind. Erase the will nots, the may nots, and the might nots that may find a home in my heart. Release me from the could nots, the would nots and the should nots that obstruct my life. And most of all, dear God, I ask that you remove from my mind, my heart and my life all of the 'am nots'
that I have allowed to hold me back, especially the thought that I am not good enough. AMEN.