Unrepentant, public, sexual sin is to be dealt with by sending the fellow Christian out into the world. We are to pray for them to come back to Christ, but have nothing to do with them.
Forget the past, good or bad. Leave your righteousness, leave your sin and your pride at the altar. Press fully into God, give Him your all, always be seeking His desires, seek who He is, and be intentional with your relationship with God.