[break] a habit
1
to stop or overcome a behavior or practice that has become a regular part of one's life
- She decided to break the habit of smoking and started a smoking cessation program.
- She's making progress in breaking her habit of over-apologizing for everything.
- She is determined to break the bad habit of biting her nails.
- It's a gradual process to break such a deeply ingrained habit, but it's worth it.
- He sought counseling to help him break his habit of compulsive overeating.