If you are a Harvard College student, contact the Accessible Education Office, Smith Campus Center 486, aeo.fas.harvard.edu, 617-496-8707. If you are a graduate student, contact either the Disability Coordinator or the Dean of Students for your graduate program to request information about accommodations.
Some students reach a very high level of academic achievement through sheer intelligence and hard work despite the presence of a neurological disorder. But students sometimes find that the increased academic demands and the level of independent functioning required of you at Harvard make it increasingly difficult to ignore or compensate for the limitations of a learning or attention disorder. It will be important for you to figure out how to learn your way so as to maximize your academic potential. A good first step is to make an appointment to talk with a professional.
It sometimes happens that a learning or attention disorder that was not a problem in high school, becomes evident in college or graduate school. It is also the case that difficulties with concentration and motivation can be caused by a number of other factors besides a neurological disorder. The best thing to do is talk it over with a professional at the BSC or CAMHS, who can help you sort out what your difficulties are and what you can do about them.