Rev. Raymond Studzinski, associate professor, spirituality, was quoted in a Deseret News article on guilt. See below.
Advice for people suffering too long from a guilty conscience
From: Deseret News
Date: March 10, 2016
Author: Jennifer Graham
... Through the sacrament of reconciliation, Catholics confess their sins to a priest, who acts on behalf of God to absolve it. The church teaches that the practice was given by Jesus to Peter when he told the apostle, “Whatever you shall bind on earth shall be bound in heaven, and whatever you loose on earth shall be loosed in heaven.” Catholics are required to go to confession at least once a year.
The sacrament gives Catholics “clear assurance that they are forgiven,” said the Rev. Father Raymond Studzinski, associate professor of spirituality at The Catholic University of America in Washington, D.C.
For most people, that’s enough. Others are still troubled by conscience even after confessing, Studzinski said.
“There’s the sin, and then there’s the feelings one has about it. The sacrament deals with taking away the sin. It usually, but not always, helps with the feelings. But you can be freed of your guilt and still plagued by it,” he said. In cases like that, Studzinski said, people should seek pastoral counseling and then, if recommended, psychotherapy. ...
Read more about Father Studzinski's expertise.