#6 of only 12 sentences you need to define your entire novel.
If your novel were a play, the Setup would be Act I. Act II would be split in two: Response and Attack. In Response we saw the hero flail and fail. In Attack, they’re no longer reacting to what’s done to them, to circumstances. Instead, they’ll become a driver for the action, attacking the problem head on. They’re no longer an aimless wanderer.
The event which changes all that is the Midpoint.