Originally Posted by giftedamateur
...my ADHD-ish brain tends to like the instant gratification of improvising for long stretches of time...
While it may be a great form of relaxation to enjoy improvising when engaged in an activity as a hobby or leisure-time pursuit, one may find that few professions allow one to excel without developing executive function skills. This old post may be of interest: http://giftedissues.davidsongifted....ources_for_impulse_contr.html#Post249829

At the risk of oversimplifying, pairing the above snippet from one post with the following snippet from another post upthread may provide a bit more context, a slightly larger view of the complete picture... ?
Originally Posted by giftedamateur
... giftedness has caused a bit of a paralysis -- like, if I want to study most subjects, I can crank out a graduate level text and academic papers and get up to speed, so it ends up being more about interest than about ability.
While many gifted persons are pluripotent and autodidactic, in addition to interest and ability, other skills may be needed to grow from being a successful student to being successful in a profession. This old post briefly summarizes an iconic article highlighting a few of the necessary skills - http://giftedissues.davidsongifted....Re_what_kids_don_t_learn.html#Post233062

When viewed through a neural lens, a gifted brain is one with a high level of activity. Over time, it has been learned that a brain may have both "gifted" areas of high activity and also areas with less activity (whether this has occurred naturally or resulted from an accident, injury, or illness). Persons can be "gifted" and also have a learning disability or learning difference; this is often called twice-exceptional or 2e. The good news is that the brain is very "plastic" and with effort the brain's functioning can be developed. The information at these external links may also be of interest:
1. 2e - https://www.nagc.org/resources-publications/resources-parents/twice-exceptional-students
2. neuorplasticity - https://www.verywellmind.com/what-is-brain-plasticity-2794886