Some favorite words of wisdom from St. Francis de Sales:
Let us not be disturbed at the sight of our imperfections, for our perfection consists in fighting against them. And how can we fight against them without seeing them, or overcome them without encountering them? Our victory consists not in being unconscious of them, but in refusing to consent to them; and not to consent to them is to be displeased with them.
(Introduction to the Devout Life, 1:5)