ADHD is a real thing. Maybe not the same as procrastination and lack of self-managment.
I've known ADHD people with extreme self-control (amazing time planning), persistence and will to learn but when they tried concentrating it wouldn't happen. Either something in their brain can't click to grok the subject or they get constantly distracted by their thoughts. The time they put into the subject is huge but they get so little from it.
I've tutored several and am amazed at how well they try to avoid the problem by being better organized but their brain sometimes just can't focus on the important stuff which limits their ability to learn stuff that requires serious attention as quickly as others.
I've known ADHD people with extreme self-control (amazing time planning), persistence and will to learn but when they tried concentrating it wouldn't happen. Either something in their brain can't click to grok the subject or they get constantly distracted by their thoughts. The time they put into the subject is huge but they get so little from it.
I've tutored several and am amazed at how well they try to avoid the problem by being better organized but their brain sometimes just can't focus on the important stuff which limits their ability to learn stuff that requires serious attention as quickly as others.