Prayer is talking to God. God knows your heart and is not so concerned with your words as He is with the attitude of your heart. The following is a suggested prayer:
"Lord Jesus, I need You. Thank You for dying on the cross for my sins. I open the door of my life and receive You as my Savior and Lord. Thank You for forgiving my sins and giving me eternal life. Take control of the throne of my life. Make me the kind of person You want me to be."
If this prayer expresses the desire of your heart, then you can pray this prayer right now and Christ will come into your life, as He promised.