I had a similar experience last week when a Communications paper I turned in was returned unmarked because it didn't meet the requirements for some very (I think) trivial reasons. Now I have to go back through 26 pages that I worked really hard on trying to figure out how to get this damn thing acceptable enough to be marked. I suppose it's better than just getting an F, but still very frustrating!

I sympathize with your situation. The way schools are structured can lead to situations where a student feels completely powerless... a very bad situation for those of us prone to depression.

Don't forget to give yourself credit for everything you've done to get to this point. Many people struggling with the issues we deal with can't function at all in an educational environment.