Exceptional Learners

What makes an exceptional learner?

Exceptional seems to me like it's supposed to be a good thing, indicative of someone who is on top or above their class; yet, unless I spaced out and missed a whole chunk of the conversation, it seemed to focus more on people with learning disabilities. This is difficult for me to touch on; I have recently been made aware that I might have a learning disability. However, I remain confident that i can fix my self through a rearrangement of habits. My procrastination is out of hand, though not quite at the all-time high it used to be.
Still, everyday is a puzzle with extra pieces from the day before. I keep getting told I am very smart and have the potential for greatness, yet I lack the self-control to refrain from letting my anger send me (literally) into flailing spasms over petty things (such as constantly having to go back and fix every typo as I am typing). Is THAT a symptom of Asperger's, too, or just a result of lack of practiced self-discipline?

So who's responsible for what here?

On one hand, I feel like it is the responsibility of parents to keep rapport with their children's teachers to optimize their learning experience, but as the child grows, whether he had a great start or not, his responsibility to make rapport between himself and his instructors increases. I have only just realized the great importance of building a relationship with the person who teaches you, expecially when you are having difficulties. It's not a point of shame to ask for help - it is actually the turning point where a student with a "learning disability" changes the direction of his learning away from stagnation and closer to the solution.