Make very specific, very small goals. Large, vague goals like “pitch more aggressively next game” or “improve my curveball” are hard to measure and complete. In your next bullpen for instance, set a goal to throw 7/10 curveballs for strikes. Or in your next game, set a goal to go 0-1 on 80% of the hitters you face. Something measurable and attainable. Little goals add up to big goals.