You know Jesus is real once you have repented of your sin and have taken Jesus as your personal saviour.

You will feel it in your heart and know that he is real. He will guide your life to salvation. However, you must be strong to tempation. Through prayer, you will grow with Jesus, and share your good news with others. You will find peace, I know because peace is something I prayed from Him, and thanks to Jesus Christ, I have peace within me.