Don't try to change everything at once. Change things a little at a time, so say these experts:
I would add this too: if you're trying to get rid of some bad behavior, just extinguishing it isn't enough. Replace the behavior with something helpful. It tends to help you stick to something to not have a void.
“Getting into the stretch zone is good for you,” Ms. Ryan says in “This Year I Will... .” “It helps keep your brain healthy. It turns out that unless we continue to learn new things, which challenges our brains to create new pathways, they literally begin to atrophy, which may result in dementia, Alzheimer’s and other brain diseases. Continuously stretching ourselves will even help us lose weight, according to one study. Researchers who asked folks to do something different every day — listen to a new radio station, for instance — found that they lost and kept off weight. No one is sure why, but scientists speculate that getting out of routines makes us more aware in general.”
She recommends practicing a Japanese technique called kaizen, which calls for tiny, continuous improvements.
“Whenever we initiate change, even a positive one, we activate fear in our emotional brain,” Ms. Ryan notes in her book. “If the fear is big enough, the fight-or-flight response will go off and we’ll run from what we’re trying to do. The small steps in kaizen don’t set off fight or flight, but rather keep us in the thinking brain, where we have access to our creativity and playfulness.”