One of the best books I have ever read about the Sacrament of Penance is entitled, *Frequent Confession *by Fr. Benedict Bauer, O.S.B. It was quite enlightening, especially his discussion of the spiritual fruits of a good confession. I recommend it to all.
As for overcoming sexual sin, there is nothing better than the wisdom of the Church: weekly confession, daily rosary, daily Mass, avoiding the occasions of sin, fasting (particularly important to drive out and protection from evil spirits of lust), controlling one’s imagination, and I would add, daily Eucharistic Adoration. One hour a day before Our Eucharistic Lord Jesus will help you to acquire self-control. Forgiving all hurts, real or imagined and surrendering our anger and fear to the Lord are also important.
Others in this forum have recommended invoking the intercession of the saints and of course, the angels, particularly St. Michael. The use of sacramentals is also very helpful especially during periods of “remote temptation” - to nip it in the bud, so to speak - holy water, sacred images, etc. As soon as a sexual temptation begins, invoke the holy Name of Jesus and call upon the angels and Our Lady. Even if one is seriously addicted to some sexual sin, these supernatural means will begin to break its power and will lead to a chaste life.
Fr. Donato