Confession helps us to better ‘know thyself’
St. Augustine and countless other saints and doctors of the Church talk about the importance of knowing ourselves well. Through coming to know ourselves better, we realized how fallen we are, and how badly we need God’s help and grace to get through life. Frequent Confession helps remind us to rely on God to help rid us of our sins.
Confession helps us overcome vice
The grace we receive from the Sacrament of Confession helps us combat our faults and failings and break our habits of vice much more easily and expediently than we could otherwise do without the sacramental grace.
Confession brings us peace
Guilt from the sins we commit can make us feel all mixed up inside and cause us to lose our peace and joy. When we hear God’s forgiving words to us from the lips of the priest in Confession, a burden is lifted off our shoulders. Sins weigh us down and enslave us, often giving our passions power over us, instead of us having control over our passions. With the healing power of the Sacrament of Reconciliation, we can again feel the peace of heart and soul that comes from being in a good relationship with God.
Confession helps us become more saintly, more like Jesus
Jesus was perfectly humble, perfectly generous, perfectly patient, perfectly loving—perfectly everything! Don’t you wish you could be as humble, generous, patient, and loving as Jesus? Saints throughout history have felt that way too, and they have frequented the Sacrament of Reconciliation to help transform them into people who are more like Christ. Little images of Christ—that’s what saints are!
Confession makes our wills stronger
Every time we experience the Sacrament of Confession, God strengthens our will and our self-control to be able to resist the temptations that confront us in our lives. We become more resolute to follow God’s will and not our own whims.
My daughter, just as you prepare in My presence, so also you make your confession before Me. The person of the priest is, for Me, only a screen. Never analyse what sort of a priest it is that I am making use of; open your soul in confession as you would to Me, and I will fill it with My light. (1725)
–St. Faustina,
Divine Mercy in My Soul
https://goodconfession.com/five-benefits-of-frequent-confession