Don't show up late. Don't sneak out early. Don't cheat your rep counts. And definitely, don't hold back. Commitment - either you do or you don't. There is no in between. Your biggest challenge isn't someone else. It's the ache in your lungs, the burning in your arms and legs, and the voice inside your head that yells 'stop'...but you don't listen. You just push harder. And then you discover that the person you were yesterday is no match for the person you are today. 20 tracks. Ready. Set. Go.