I'm also coming from Canada so experience may vary to where you are (sorry )

For me, academic accommodations from Counselling and Disability Services have been GREAT help as I've gone through college and university. I would start with just introducing yourself to what is availiable and get an assessment of your strengths. It IS really easy to feel hopeless with your diagnosis' and wonder where to start. But I have found the staff at this department ARE willing to help. Also the vast majority of supports provided are free = covered under the "fees" you pay alongside the courses...At the very least, testing accomodations = extra time for tests and exams = more time to work through your strategies to focus to actually do the work necessary

hope it all works out