“I have been crucified with Christ. It is no longer I who live, but Christ who lives in me. And the life I now live in the flesh I live by faith in the Son of God, who loved me and gave himself for me.” (Galatians 2:20)
Some people like to call it their “B.C.” or “Before Christ” years, referring to the period of their life before coming to faith and salvation in Jesus. I remember mine, and it wasn’t pretty.