You have said this prayer and meant it. What you have said is a fact. You have asked Jesus Christ to come into your life and he has come in. He now lives in your heart by his Holy Spirit. This is the life in Christ discovery.
Don't rely on your feelings; you may not feel any different at the moment. Trust his sure promises as in Revelation 3:20, "If any one hears my voice and opens the door, l will come in to him . . ." and John 6.47, "He who believes has eternal life" and in Matthew 28:20 "1 am with you always, to the close of the age." Because of this life in Christ discovery you are now a member of Gods Kingdom, a child of God's family. You are part of his Body the Church - all who trust in Jesus, whatever their color, background, or intellect.