When was the last time?

When was the last time you felt the loss of all confidence in yourself? This quote grabbed me today...... "Just as the sinner's despair of any hope from himself is the first prerequisite of a sound conversion, so the loss of all confidence in himself is the first essential in the believer's growth in grace." --A.W. Pink

Because it is only as we know our weakness that we can experience what Paul, in Ephesians 3, refers to as "the power at work within us". God help us. God help me!