What do you do with what you're given, and how do you transform it into something worthwhile?
When you step on the treadmill, make a commitment. Do, say, 3 miles a day. And don't get off until you finish. It doesn't matter what speed you're going. Just don't get off.
If economists could manage to get themselves thought of as humble, competent people on a level with dentists, that would be splendid.