Do you know for sure that Jesus Christ is your personal Saviour and that you're on your way to Heaven?

First, realize that everyone is a sinner...
Romans 3:23 "For all have sinned and come short of the glory of God."
Second, realize that sin has a price that must be paid...
Romans 6:23 "For the wages of sin is death, but the gift of God is eternal life, though Jesus Christ our Lord."
Third, realize that Jesus Christ died to pay the price in your place...
Romans 5:8 "But God commendeth his love toward us in that while we were yet sinners, Christ died for us."
Finally, trust Jesus Christ alone to be your Saviour, claim His promise of Eternal life and ask Him to save you...
Romans 10: 13 "For whosoever shall call upon the name of the Lord shall be saved."