I believe that ministries designed to help gay people change have been able to help a few of them to reach that goal. People, who have much more knowledge on this subject than I do, describe it as a continuum, where those who are completely heterosexual are at one end, and those completely homosexual are at the other end, with varying degrees towards the center. Those nearest the center are the ones who are able to change. Many people say, "But God can change all of them."
Most of my gay friends have earnestly prayed to God to help them change, but they have finally found peace by accepting themselves as persons created by God to honor God. In this acceptance, they have come to a new realization of God's love for them.