Sometimes I feel that Krishna is not hearing my prayers, as they are not answered. Am I doing something wrong?

The focus of our prayers should be to understand Krishna’s will for us, and then to pray for the strength to carry out his will. At times Krishna does not respond immediately because He detects in our heart the tendency to expect Him to do as we wish. There is a subtle difference between desiring Krishna’s will and our own, even in prayer, but we must carefully discover that difference and surrender to Krishna.