Have you ever drawn a screw only to be told “That is in the wrong perspective” and then had to redraw it from scratch? No? Imagine doing that forty two times in a month. That was my personal enlightenment trial, the kind of test the Buddha would absolutely rage against. I was creating an instruction manual for assembling an OCTA disassembly device, basically a phone screen remover, and every tiny part had to be perfect. After building a series of chaotic contraptions to force myself to draw in perspective by hand, I finally snapped. I taught myself CAD, 3D modeled the whole device, exported it with the focal length of a human eye, and traced from that instead of real life. Please do not tell my professor.