I think you're on the right track asking your counselor to help you. I should have probably clarified that what I meant was talking to your professors at the beginning of the semester or right when you first get these writing assignments. If you want until the last minute some professors will interpret that as simple procrastination which isn't your problem. And, as you have seen, you will run into people who are unkind and unhelpful. Please don't let them constrict your college experience. I think you are right to try to get this before the office of disabilities because you are trying to help yourself and the college doesn't seem to be keeping up its end to help you. Courage!