First Week of Lent-Wednesday

Day 8
Part 1 Chapter 8
"Venial Sins-Its Effects"

Perhaps the best post on this chapter would be to include a few references from the Catechism of the Catholic Church and then reprint the ending of the chapter.

1862 One commits venial sin when, in a less serious matter, he does not observe the standard prescribed by the moral law, or when he disobeys the moral law in a grave matter, but without full knowledge or without complete consent.

1863 Venial sin weakens charity; it manifests a disordered affection for created goods; it impedes the soul's progress in the exercise of the virtues and the practice of the moral good; it merits temporal punishment. Deliberate and unrepented venial sin disposes us little by little to commit mortal sin. However venial sin does not set us in direct opposition to the will and friendship of God; it does not break the covenant with God. With God's grace it is humanly reparable. "Venial sin does not deprive the sinner of sanctifying grace, friendship with God, charity, and consequently eternal happiness."^{134 (John Paul II Reconciliation et paenitentia)}

While he is in the flesh, man cannot help but have at least some light sins. But do not despise these sins which we call "light": if you take them for light when you weigh them, tremble when you count them. A number of light objects makes a great mass; a number of drops fills a river; a number of grains makes a heap. What then is our hope? Above all, confession.^{135 (St. Augustine)}

"Under the eye of Jesus, examine your conscience to see what your attitude is towards venial sin (I think that this should just read sin here), and especially towards venial sin, and especially towards a habit of venial sin. Are you not still tolerating yourselves a habit of this sin? Do not excuse yourselves a habit of this. Do not excuse your indolence by saying: "My temperament is the cause of it. After all I do not sin mortally, and therefore I am always in the friendship of God."
Determine clearly the method you will adopt in your struggle against a certain habit of venial sin, and
tell Jesus of your weakness. Tell Him the principal evil from which you suffer, and of which you desire to cure yourselves, with the help of His grace."

I believe that St. Ignatius, in particular, would counsel a person to choose one habit of sin to methodically address at a time.