i have all those same adhd symptoms  but i recognize them as an excuse for being lazyirresponsible  the best tool ive found for at least convincing myself i dont have adhd  is the rsvp method of speed reading  rsvp or kindle for android calls it word runner flashes one word at a time to your eyes at a massive pace of like 6-10 words per second i concentrate like mad for hours on end when reading a good book using any speed reading technique rsvp at a slightly uncomfortable pace is probably the best   way to learn the fundamental aspect of speed reading elimination of subvocalizing  a lot of the other replies ive seen on this thread most of them to be honest are manifestations of anxiety  we need to be honest many people claim they have adhd to evade personal responsibility for making sound life choices in fact the symptoms of adhd are almost indistinguishable from chronic depression and anxiety  i say this as someone who has such a poor memoryattention span that i recently started to entertain the idea that i have a retrograde amnesia  on further reflection i realized that im lazy and intentionally disorganized with a mediocre diet and incredibly poor sleep habits  to me the disorganizationchaos is an avoidant stress coping mechanism i have better coping skills available i just dont have the mental stability to put them into consistent practice