Where Do We Find Ourselves?

In Thursday’s Gospel reading (Luke 15:1-10) we read:

Rejoice with me because I have found my lost sheep.I tell you . . . there will be more joy in heaven over one sinner who repents than over ninety-nine righteous people who have no need of repentance.

So with whom do I identify? Do I need my life to be turned around? Or am I among the self-satisfied? Am among the lost or the found? How do I know the difference?