Cancrizans

It can't become good until I try it. But if there's a chance it won't be perfect, why start at all?

The protagonist wants to create something. Motivation generates an idea in his head, but when he starts to execute it, the doubts arise. The idea is discarded. The story is about a single person and the opposite perspectives within themselves, but also emphasises that both perspectives originate from the same source, the same person, the same material.