Some of you may be very excited to change your behaviors immediately. You looked at the areas that you needed to improve. You listed down all the things that you must do differently. You set high targets. You started to implement them all at one go. You got tired. Frustrated, you dumped them all. That is the typical cycle when you start your change in a big way.
Alternatively, you may change a little bit at a time. For example, rise in the morning 5 minutes earlier. Do this consistently. Once it has become a habit, you realize that you have achieved change. You have won. You find that you can change, and you are motivated to do better. So you begin to set a higher target; rise another 5 minutes earlier. Do this consistently ... and the loop continues.
The most important thing about change is to start small and be consistent.