Realize that you are a sinner...
"For all have sinned, and come short of the glory of God." Romans 3:23
Understand that sin has a price that must be paid...
"For the wages of sin is death; but the gift of God is eternal life through Jesus Christ our Lord." Romans 6:23
Believe that Jesus Christ paid the price for your sins...
"But God commendeth his love toward us, in that, while we were yet sinners, Christ died for us." Romans 5:8
Trust in Christ alone for eternal life in Heaven...
"For whosoever shall call upon the name of the Lord shall be saved." Romans 10:13
If you are willing to trust Christ as Savior, pray a simple prayer:
Dear Heavenly Father, I know I am a sinner. I am sorry for my sins. Please forgive me. I believe Jesus died on the cross for me. I trust Jesus as my one and only savior and to take me to Heaven when I die. I accept your gift of eternal life. Thank you for loving me, forgiving me, and most importantly saving me, in Jesus name I pray, Amen.