We are all creatures of habit. Intentionally or not, we tend to get into habits. Sometimes they are good, sometimes not. And, we look at certain milestones to assess what bad habits we need to get rid of, and what good ones to start. For example, the birth of a child convinces one to stop smoking. A relocation prompts one to get out and explore the area instead of being sedentary in a comfortable environment. And, of course, fitness centers get crowded in January as the end of the Holiday season signals a time to exercise and lose weight.
No one purposefully gets into a bad habit with the intention of getting into a bad habit. It just happens. And breaking those habits requires energy. Whether the physical energy of exercise, or the mental and psychological energy of the discipline it takes to eat right, devote time to pray, or read.