Buddy, relaaaaax! LOL, I'm taking the my first FAR Tuesday, and I feel the stress too, but you cannot let the "failures" get to you.  In my opinion, you're not even failing in the first place.  You are answering question after question, taking practice test after practice test, and that is a huge part of being successful at anything.

It sounds like your biggest obstacle right now is yourself - your confidence should be sky high right now, but if you blunt it by worrying about this score and that score, you're almost gauranteed to self destruct. 

You've got to try to get over the irritation over the way the questions are worded and what they are "expecting".  Just accept it and try to learn how to decipher what they are really asking for in these questions.  I noticed the same thing, and I feel like I've learned quite a bit about how to answer the questions simply by analyzing how the more tricky ones are worded or the information/numbers are presented.

Good luck, and I'll need some of my own Tuesday taking FAR for the first time.  I hope you pass.

Hope you did great Posty!!