I've learned that you can tell a lot about a person by the way (s)he handles these three things: a rainy day, lost luggage, and tangled Christmas tree lights.
Finish each day and be done with it. You have done what you could. Some blunders and absurdities no doubt crept in; forget them as soon as you can. Tomorrow is a new day; begin it well and serenely and with too high a spirit to be encumbered with your old nonsense.
Behold the child, by Nature's kindly law, Pleased with a rattle, tickled with a straw; Some livelier plaything gives his youth delight, A little louder, but as empty quite; Scarfs, garters, gold, amuse his riper stage, And beads and prayer-books are the toys of age. Pleased with this bauble still, as that before, Till tired he sleeps, and life's poor play is o'er.