Creature of habit
Q. Why are humans creatures of habits, and why is change so hard?
A. Humans are creatures of habits because habits are efficient, fast, and save brain-body energy. Why is change so hard? Because the brain must override and interrupt a habit or create a new one, which either way takes time and energy. Sometimes a good habit is unhelpful in specific situations only. For example, when confronted by danger the brain typically initiates a fight-or-flight response. If a large and potentially dangerous wild animal suddenly confronts you, however, fighting is not an option and running is exactly the WRONG thing to do if you plan to live another day. It that situation, the brain is also designed to get your attention and tell you that a typical learned habit is NOT in your best interest in this situation.