The Big Book uses the phrase 'had to stop' twice:
This is about exercising the choice of no choice: I had no choice but to stop drinking, so that was what I had to do. I had no choice but to stop doubting the power of God, so that was what I had to do.
This is about exercising the choice of no choice: I had no choice but to stop drinking, so that was what I had to do. I had no choice but to stop doubting the power of God, so that was what I had to do.