Tendency to blame others

Man can invent numberless reasons to blame others for his negligence and lack of dedication. For example, when I became conscious that I have discontinued my writing habit for the last some days, I readily started to blame my worries, my heavy duties and even not to spare my pen if the ink is finished up while drafting. But I never feel the importance of turning my eyes to my own weaknesses like my negligence to or lack of commitment in my undertakings.