Believer, may your mind be changed (repentance) of your righteousness in Christ so any self righteous thinking is abolished in grace. Repentance is not about listing sins or striving for a behavior change.
Repentance is about Christ re-convincing our hearts and minds of the truth of how much we are loved by our Savior.
“And the free gift is not like the result of that one man’s sin. For the judgment following one trespass brought condemnation, but the free gift following many trespasses brought justification. If, because of one man’s trespass, death reigned through that one man, much more will those who receive the abundance of grace and the free gift of righteousness reign in life through the one man Jesus Christ.” Romans 5:16-17