The hyperfocus line drives me nuts because if I could do that I wouldn't have a disorder. In fact I would be particularly "ordered" wouldn't I? Hyperfocus but I can control it? Sigh me the fuck up! I get hyperfocused because certain activities trigger a hella sweet dopamine rush that my brain is craving. Unfortunately, I can't control which activities will trigger that reaction, and no amount of self-discipline or willpower will compel my brain to "want" to give me a hit while doing something i find tedious or uninteresting. I can still do stuff I don't want to do, usually... sometimes... ish... but the odds of me falling into a hyperfocal state while doing so are naught.
This reminds me of the age when the egregiousness of home Internet data overage charges in Canada reached their zenith, with some back of the napkin math, I realized it would be more cost effectuvd to buy and fill a solid state drive (which had only begun to come down in price) with stuff, ship it overnight international, and then destroy it after downloading its contents, than to hit the overage charge limit with my provider.