DIY content frequently claims projects take far less time than they realistically do for someone without significant prior experience, and understanding why helps set better expectations.
Published time estimates are often based on an experienced maker’s actual build time, filmed and edited, with setup, mistakes, and cleanup removed from the final estimate entirely.
First-time builders should expect a meaningful multiplier on most published estimates — research consistently shows novices take substantially longer than experienced makers on unfamiliar tasks, simply due to unfamiliarity with tools and techniques, not lack of effort.
A more useful approach: budget at least double the stated time for your first attempt at any new technique, and treat the first project using a new skill as partly a learning exercise rather than purely a finished-product timeline.