All of the great men and women of God have all understood something very important…that we are what we are, by the grace of God. The apostle Paul said, By the grace of God, I am what I am.
As a believer, we relate to God on the basis of what Jesus Christ has already done for us, not on the basis of our performance or perfection. Even though we know this with our minds, sometimes it takes time before the Holy Spirit is able to really get this belief firmly established deep into our hearts.
God wants to bring us out of struggling and trying to measure up through our own strength, will power & performance, into a life empowered by his grace.