BOSTON – Achieving success or struggling depends on many factors, but habits go a long way toward determining either outcome, research showed.Breaking bad habits and cultivating good ones can be difficult, and willpower alone isn’t enough, Ngan Nguyen, a leadership coach and author of “Self-Defined Success: You Already Have Everything It Takes,” said. “You can’t create the life you want unless you replace bad habits, and that happens by developing a new mindset. These are new thought processes that are linked to your new clarity of vision for your life.“Usually, some sort of stimuli triggers our habits. Breaking a habit requires changing the action that we take when the stimuli appear. Repeated over and over, these new, more constructive thoughts and resulting pos
