Atomic Habits is a definite guide of how to break bad behaviours and create effective new ones. Change takes place in 4 steps. The first step is awareness. Once you determine your bad habits you are able to eradicate them and start to install good new habits. Habits are like compound interest of money in the bank, the more you create good habits, repeat them, and install them into your life, the more likely you are to achieve your goals and ambitions in life.
The 4-step process is cue, craving, response, and reward. Any new habits you want to install need to be obvious, attractive, easy and satisfying. Often one of the best ways of measuring your habit formation is to create a habit tracker which can be done in multiple ways and details can be found in the book. You can also apply the opposite philosophy to bad habits i.e., make them invisible, unattractive, difficult, and unsatisfying. We have included a summary link here of Atomic Habits from fourminutebooks.com.