Nobody is a machine. We’re all just a bunch of totally messy, incoherent weirdos hurtling around the galaxy on a spaceship we don’t fully understand, pretending we’ve got our shit together and competing with each other to see who’s the most convincing.
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. You shall begin it serenely and with too high a spirit to be encumbered with your old nonsense.