I couldn't run a tight schedule, and if you're any good at teaching, you get sucked dry because you like your students and you're trying to help them, but you don't have any time left to write yourself.
I think players tend to get anxious if they've not really done things properly - like eating, resting or training. If you're fully prepared you've got nothing to worry about - it's just a game of football.
For me, the great joy is to watch an audience watching what I've made. To hear not a peep from the audience at the right moment, and then to hear the laughs and the cheers.