Old neural networks are always persistent. If you have a habit that conflicts with something you want to do... example sleeping in vs exercising. First breaking the habit of sleeping in makes room to add the new habit of exercising.. That is finding the time for it.
I'd still follow it with New Habit Generator for exercising. New Habit Generator would also be more useful for habits like remembering to say hi to everyone in a pleasant tone when you come home. You're not necessarily breaking a habit of coming home and being unpleasant. Just forget to say hi and someone has asked you to do that as in letting them know you're home.
Make sense?
Alex