I don't think I have ADHD, but I do know that making the right decisions (and setting things up to limit having to make decisions) when the adrenaline is pumping is why I have kept to the KISS principle in most common situations where adeneline is likely to be flowing.
For example, all of my bolt rifles are in cartridges that have fairly similar trajectories, and they are all sighted in similarly so that 6" vital target maximum PBR is similar, and about as long as I am willing to shoot a living creature om the quick (except maybe coyotes and a few other vermin.)
Or another example, when I was doing a lot of marlin fishing, all same pound class rods and reels were set up the same. Identical rods and reels, with the same drag, same wind on leader length and strength, same trace, same hook... Didn't need to think about anything other than the appropriate drop back for that particular bite.