If anyone read that comment "HUMAN MISERY" and thought it made sense , then consider, that Brian Tracy said, the reason you're going back to your old self is that you let yourself get dragged back by your environment. This means that the environment (parents, friends, neighbours, ...) who created you that way, will make you your old self, except if you apply these three rules two your life:
Avoid people who work destructively on your life. Be with people who want to change their lifes, too. Always know that people will change you, so know your direction and stay with it, because only you know it.