And don’t confuse “reasonable” with “realistic.” Reasonable means “makes sense.” Realistic, on the other hand, means “likely to happen.” For instance, it may be reasonable to decide on January 1 that you’re going to sign up for your MBA classes, never yell at your kids again, and start running marathons—but it’s probably not realistic. It typically makes more sense to pick one goal that’s likely to be attainable and focus on it. When you have that goal in mind, use this approach to achieving it: