Take classes you are truely interested in, that way concentration and focus will come much easier than a class you really don't want to be in in the first place.

I just did my best to make it to class and focus on the work when I studied. For a while I just didnt bother to go to class or was too drunk to really grasp anything. The week I missed to be in the p-ER was forgiven by the Dean, though I had to make up the exams.

I recieved no special accomodations because at that time I kept my dx to myself and wouldnt want to be treated differently.

I did end up taking somewhat easier classes and a lighter load to try to make things easier on myself.