Some quotes that I hope may resonate with you.
"It is requisite for the relaxation of the mind that we make use, from time to time, of playful deeds and jokes." - Thomas Aquinas
"Fanaticism consists in redoubling your efforts when you have forgotten your aim." - George Santayana
"If you want to perform when the world is watching, you have to do the work when no one is watching." - Shane Parrish
"Dost thou love life? Then do not squander time; for that's the stuff life is made of." - Benjamin Franklin