Let Him have all your worries and cares, for He is always thinking about you and watching everything that concerns you. 1 Peter 5:7
We all say that we give our worries and concerns over to God. But do we really? In our day to day living things come along that either will improve or make things worse. When things are going good we have a tendency to take things back from God saying this is such a small thing and God is busy taking care of the large things. So we take it back and then totally mess things up big time. When this happens we start calling on God and give it back to Him once again.
As my nephew Brad would say; "You asked God to drive the car so you need to quit trying to drive and let God drive the car as you asked."
Are you letting God drive the car?