I have found that in the days leading up to Christmas and Easter that the evil one attacks most ferociously. So to be prepared for his attacks, we should ramp up our devotion to St. Joseph, Terror of Demons, and the Immaculate Heart of Mary. and do not be discouraged.
Also, I provide this meditation on the tempter.
The enemy daily and violently persecutes my faith, hope and love. Thou art persecuted, my faith! Thou art persecuted, my hope! Thou art persecuted, my love! Endure, faith; endure, hope; endure, love! Take courage, faith; take courage, hope; take courage, love! God is your Defender! Do not grow weak, faith; do not grow weak, hope; do not grow weak, love! The Devil generally enters into us through one single lying imagination, or through a single false thought and sinful desire of the flesh, and afterwards he works in us and disturbs us, so incomplex is he. Cannot, therefore, the Lord of all spirits enter into us through one single thought and through true and holy love, and abide with us, and be everything to us? And therefore pray undoubtingly; that is, simply, in the simplicity of your heart, without a doubt: it ought to be as easy to pray as to think. When you are very young, or leading the life of the sinful world, then you only know by name both Christ the Saviour and the enemy of God and mankind, the most evil Satan, and you think that Christ is very far away from you in heaven, and that there is a Devil somewhere, but not in any way near and around you, and though you hear that he is evil, you think his wickedness does not concern you; but when you grow older and enter upon the devout life, when you serve God with a pure conscience, then you will experience in your heart the difference between the easy yoke of the Saviour and the heavy burden of Satan, who pitilessly injures us.
St. John Kronstadt