How difficult it is for us to say, along with the Prodigal Son, "I have sinned." But there can be no healing before we acknowledge responsibility. The biggest stumbling block I can see is the denial of guilt where guilt is due. Second, we need to believe that mercy and healing are possible. "Can God forgive what I did?" I heard that in jail, too. Nobody is so vicious (or damaged) that the virtues can't take root in his soul, after repentance and a humble openness to Christ.