You can know for a fact that you are going to Heaven.
I John 5:13 – “These things have I written unto you that believe on the name of the Son of God, that ye may know that ye have eternal life, and that ye may believe on the name of the Son of God.”

You must accept the fact that you are a sinner.
Romans 3:23 – ”For all have sinned, and come short of the glory of God”

You must accept the fact that the penalty of sin is death.
Romans 6:23 – “For the wages of sin is death, but the gift of God is eternal life through Jesus Christ our Lord.”

You must realize that Jesus died for your sins.
Romans 5:8 – “But God commendeth His love toward us, in that, while we were yet sinners, Christ died for us.”

You must accept this free gift of salvation.
Romans 10:13— “For whosoever shall call upon the name of the Lord (Jesus) shall be saved.”