Here’s an extremely interesting article which discusses the difference between making and breaking habits.
Short version: Habits can be made, by adding actions to something that already happens. To break a habit, you can sometimes substitute an alternate behavior. If that doesn’t work, you need to use what the author calls “progressive extremism.” Well worth reading.
Here’s the full link: http://www.nirandfar.com/2015/04/bad-habits.html?utm_source=NirAndFar&utm_campaign=d31a4c6049-book_deal&utm_medium=email&utm_term=0_9f67e23487-d31a4c6049-97689257&goal=0_9f67e23487-d31a4c6049-97689257