Atelodemiourgiopapyrophobia?!?!?!
The fear of imperfect creative activity on paper.
‘Atelo‘ from Greek 'ateles' literally ‘without end’, meaning incomplete, inchoate, imperfect.
‘Demiourgio‘ from Greek ‘demiourgia’ literally workmanship, handicraft, meaning creative activity.
‘Papyro‘ from Middle English / from Old French 'papier' / from Latin 'papȳrus', papyrus plant, papyrus paper / from Greek 'papūros'.
‘Phobia‘ from Greek: φόβος, phóbos, meaning “fear” or “morbid fear”.
For the next time you're faced with a blank page/canvas, riddled with all-consuming, paralysing fear, you know what to call it. All we need to do now is learn how to pronounce Atelo... Atelodeeee... Atelo-thingy.
PS. Don't judge my messy kitchen in the background... I'll deal with it as soon as I've mastered my Atelo-thingy!