This is a prayer from St. Maximillian Kolbe. Our Lady offered him either the crown of purity or that of martyrdom. He took, and received, both. I think it will help all of us who tend toward cursing, especially taking the Lord's name in vain, and other impure language.
Prayer to the Immaculata
O Immaculata, Queen of Heaven and Earth, refuge of sinners and most Loving Mother, God has willed to entrust the entire order of mercy on to you. I, a repentant sinner, cast myself at your feet, humbly imploring you to take me with all that I am and have, wholly to yourself as your possession and property. Please make of me, of all my powers of soul and body, of my whole life, death and eternity, whatever most pleases you. If it pleases you, use all that I am and have without reserve, wholly to accomplish what was said of you: "She will crush your head" and "You alone have destroyed all the heresies in the world." Let me be a fit instrument in your immaculate and merciful hands for introducing and increasing your glory to the maximum in all the many strayed and indifferent souls, and thus help extend as far as possible the Blessed Kingdom of the Most Sacred Heart of Jesus. For wherever you enter, you obtain the grace of conversion and growth in holiness, since it is through your hands that all graces come to us from the most Sacred Heart of Jesus.
V. Allow me to praise you, O Sacred Virgin.
R. Give me strength against your enemies.