If you have to inculcate a habit than you have get out of your comfort zone and make a shift from comfort to accomplishment. if you get attracted to relaxing rather than training then you won't be able to enhance your good habits that if not achieved now will be become irresistible and will stick with you like a leech which will damage you in the long run. If you really want to change your habbits then you will have to change the underlying beliefs which you have built till now. If you are not willing to change your beliefs or identity then you won't be able to achieve it, you might get motivated and you will continue to do something good lets take a example of early rising, you will wake early for one or two days but later get back to your old behavior failing badly. You will keep on setting new goals and plans but unless and until you change your identity you won't going to achieve much and you fail every time and this will crush your will power later you will accept that you can't wake up early and you will accept it as truth that it is your identity to wake up late. lets take example of a famous person name robinson who used to chew his nails without knowing consciously he used to do it every time he then noticed that due to this bad habbit he was not only embarrassing himself but also his wife in Public later that day he asked his wife to book an appointment for manicure and then he visited there the lady worker over there told him that Robison why do you chew your nails, your nails are so healthy and beautiful you shouldn't be chewing them then suddenly Robison started taking pride of his nails and from that day he stopped chewing it. 

The more pride you have in a particular habbit then there are more chances of following it and there were 2 persons who just quit smoking suddenly they both were asked by one his chain smoker friend while offering cigarettes to them then one person replied that i am trying to quit cigarettes where the other person said i dont smoke. The first person reply was bit confused and lack firmness in his answer so he will have more chance of smoking again than other person.