“If you’re forced to decide on the spot how to respond to an unexpected hurdle, you’ll be trying to problem-solve while coping with the handicaps of stress and other demands on your attention. It’s not likely that you’ll do your best thinking under those conditions. You might come up with something that’s just workable or not even workable or maybe nothing at all—and the pull of the behavior that is most familiar (and thus easiest to do) will be too great to resist successfully. So please review the steps you’re planning to take and ask yourself: “What could make it challenging to take those steps? What could make it hard for me to carry them out? What might get in the way of sticking with the plan I’ve made?”