The fight to overcome vainglory, or to be full of pride over your own achievements, is not an easy one. You can only win by secretly working on virtues and frequent praying. A sign that you have been successful is that you do not harbor resentment against anyone that have accused you in the past or presently accuses you.
St. Maximus the Confessor, Fourth 100 chapters regarding love, Filokalia
Translated by Dr. Nick Stergiou