I am going through the same thing as you are, so any advice I might give is a little like the pot calling the kettle black. I'm in graduate school doing the degree online and this past semester has been hell because of this regulatory writing course I have to take for the degree (it's a lot of step by step stuff, and the instructor hasn't answered any of my e-mails or requests for contact, which is weird).
The best thing to do, I guess, would be to explain your situation to the office of disability services at your school, or whatever the equivalent is. Get an IEP or figure out some way where you can use your skills in order to finish the work. And to finish those assignments, even though they might not be absolutely perfect to you. Finishing the degree is important.