I'd like to talk about a time about two years ago when I moved into an unfurnished flat and had to assemble a massive three-door wardrobe completely from scratch. The flat-pack boxes arrived with a thick booklet of printed instructions, which turned out to be far more daunting than I'd anticipated.
The whole thing took place in my bedroom on a Saturday afternoon. To be honest, I thought it would take an hour or two at most, but as soon as I opened the manual, I realised I was completely out of my depth. The manufacturer hadn't included any actual text, just dozens of tiny, black-and-white diagrams filled with ambiguous arrows, numbered screws that looked virtually identical, and cross-sections of wooden panels. What made it particularly frustrating was that two of the main side panels were mirror images of each other, but the drawing didn't clearly indicate which side faced inward.
I spent the first half-hour simply laying out all the components on the floor to cross-reference them with the parts list. At one point, I actually fitted the drawer runners upside down because the diagram was so poorly drawn, so I had to dismantle an entire section and start that step over again.
In the end, after nearly five hours of painstaking work and a fair bit of trial and error, I managed to get the whole wardrobe standing upright and completely sturdy. It was definitely an exhausting process, but there was a real sense of accomplishment once the doors were aligned and sliding smoothly.