In short, automatic habits enable you to get stuff done. The efficiency that your habits offer your brain are great, so long as the habits are adaptive and serve you well.
How Long Does It Actually Take to Build a Habit? | HUM Nutrition Blog

Conversely, habits turn into liabilities when they negatively impact your life. What should you do when you realize your current habits don’t serve you anymore and you want to change them? How do you go about creating new habits?
How Long Does It Actually Take to Build a Habit? | HUM Nutrition Blog