Unwanted habits are often automatic. You can want to stop and still find yourself doing it again, especially when you are stressed, tired, or operating on autopilot. This is not a lack of willpower. It is a learned pattern.
How hypnotherapy may help
Hypnotherapy works with the part of the mind that runs habits automatically. The focus is on changing the trigger–response pattern that keeps the habit in place, reducing the pull of the urge and making different choices feel easier and more natural.