Professional Exams - what do you do to cope?

Having a LD issues all of my life I have found various ways to cope and get around barriers. Recently, I was told that I needed to take a professional exam for my job. The stress of this looming task was unreal. I am at best a poor test taker - always have been - always will be.

I studied and did everything I could to prep - was accommodated extra time and a private room..., but as I had figured I failed the test. My job is not in any jeopardy and I doubt I will attempt to take it again.

I was just wondering how other LD people handle tests like this?