See if your university has a disability services department (most do now, at least in the US). Registering with disability services at your school can open the door to helpful services.
I think study groups are often helpful to keep students with learning and organization challenges on track.
Here are some additional study tips for college students with ADHD too:
Penny
ADDitude Community Moderator, Parenting ADHD Trainer & Author, Mom to teen w/ ADHD, LDs, and autism