I think the big myth about habits, and happiness too, is that there's somehow a magic "one size fits all" solution. That, "If it works for you it's going to work for me," and it's just a matter of figuring out what that habit would be, whether that's do it first thing in the morning, or start small, or do it for thirty days, or give yourself a cheat day.
Gretchen RubinSometimes, counter-intuitively, it's easier to make a major change than a minor change. When a habit is changing very gradually, we may lose interest, give way under stress, or dismiss the change as insignificant. There's an excitement and an energy that comes from a big transformation, and that helps to create a habit.
Gretchen Rubin