Hair-pulling disorder (trichotillomania) is often misunderstood, even by the people who experience it. The urge can feel nearly automatic, something that happens with little conscious awareness, and it frequently increases during moments of stress, boredom, or emotional discomfort. The shame and concealment that tend to follow can make the cycle harder to break.
Therapy focuses on building your awareness of when and why the urge arises, and then developing other ways to respond to it. Habit reversal training is one of the most well-supported approaches: it helps you catch the behaviour early and substitute a less harmful response. Sessions also give you space to work through the emotional states that tend to trigger pulling, so you are addressing what is underneath, not only managing the surface behaviour.