1. The Temptation to Distraction
Purity of heart is to will the one thing. — Søren Kierkegaard
Lent can very quickly become about doing way too many things or nothing at all. The devil wants us to either drown in penances or feel discouraged right away and give up. The thing is that Lent should be about God, not our activities, as well-intentioned as they may be.
It is better to ask God to help us focus on one key thing during Lent, and then despite our failures, ask him for the grace to persevere.