To know one life has breathed easier because you have lived. This is to have succeeded. — Ralph Waldo Emerson. American philosopher (1803–1882)
To be yourself in a world that is constantly trying to make you something else is the greatest accomplishment.
Finish each day and be done with it. You have done what you could do. Some blunders and absurdities no doubt crept in; forget them as soon as you can. Tomorrow is a new day. You shall begin it serenely and with too high a spirit to be encumbered with your old nonsense.