...she didnt turn to Alcoholics Anonymous. She decided to do it all on her own, a process she details in her book, This Naked Mind (Avery).
...Grace researched alcohols ill effects and journaled about why she was drinking in an effort to dismantle the assumptions that she had made about the substance that it was calming her nerves or making her more interesting. In fact, she found, it didnt do any of that.
After a two-week period of withdrawal symptoms such as having trouble sleeping, night sweats, anxiety and restlessness, Grace became completely sober using her mind-over-matter technique.
The book tells you how to do it using will power is my guess.
Two weeks??? More like two days.
Essentially, she changes her mind by washing her mind. That's my guess.