Remember that poise and power are inseparably associated.  

The calm and balanced mind is the strong and great mind; the hurried and agitated mind is the weak one. Whenever you fall into the mental state of hurry you may know that you have lost the right viewpoint; you are beginning to look upon the world, or some part of it, as going wrong. At such times read Chapter Six of this book; consider the fact that this work is perfect, now, with all that it contains. Nothing is going wrong; nothing can be wrong; be poised, be calm, be cheerful; have faith in God.  

Next as to habit, it is probable that your greatest difficulty will be to overcome your old habitual ways of thought, and to form new habits. The world is ruled by habit. Kings, tyrants, masters, and plutocrats hold their positions solely because the people have come to habitually accept them. Things are as they are only because people have formed the habit of accepting them as they are. When the people change their habitual thought about governmental, social, and industrial institutions, they will change the institutions.