Hold your breath until the last second
Completely ignore that idiom that goes, “don’t hold your breath.” When you use the breath-hold mechanic, you want to make sure you let it run until the very last second. That being said, don’t allow yourself to get caught slipping, because letting it run out could mean bad news for you and the goal of the chapter. However, letting it get close gives the most utility, and you’ll be fine every time.