Finish every 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 cumbered with your old nonsense.  This day is all that is good and fair.  It is too dear, with its hopes and invitations, to waste a moment on yesterdays.
–Ralph Waldo Emerson