The fourth step is through prayer of faith; invite Christ Jesus into your heart/life to become your personal Saviour and Lord, 

and meant it with all your heart, YOU ARE SAVED! You have been "born again" spiritually as a child of God. Your sins have been washed away and you are a person with a new nature. 

John 14:6 ‘Jesus said to him, “I am the way, the truth, and the life. No one comes to the Father except through Me.’ 

John 1:12 “But as many as received Him, to them He gave the right to become children of God, to those who believe in His name:” 

Do keep in mind that merely saying a prayer in itself does not save you, for prayer is not like a magic charm or incantation. Only faith in Jesus Christ alone saves. Mere intellectual assent to the truth about Jesus is not sufficient.  

Simply believing in the existence of God, or that Jesus is the Saviour is not enough. For that is no better than the faith of demons. They believe that and tremble (James 2:19 You believe that there is one God. You do well. Even the demons believe—and tremble!)