Premanand Maharaj Ji
How do I build self-discipline?
Why your rules break
A rule breaks when we act against dharma in what we see, hear, say, eat or drink. Once you take a rule, the mind also tries hard to throw you down, and if you do not do naam jap and sadhana, it will.
Any rule that is taken breaks, and enthusiasm is lost, only when we act against dharma.