Admitting I was a sinner was difficult for me. I'd tried so hard to be good. But the Bible says there is none that do good, there is none righteous...all have sinned...all fall short (Romans 3:10,23). Until one can admit this to himself and God, one will not call upon His name....
Pride kept me from admitting I was a sinner...and that same pride kept me from calling on His name and receiving his gracious gift of salvation. [Romans 10:13 "For whosoever shall call upon the name of the Lord shall be saved".]
Agreeing with God that I indeed was a sinner and calling on Him to save me entered my name in the Book of Life in August 1970 and assured my entrance to Heaven. "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" I John 5:13