You might want to check out my online exam on equals, = and == at
www.scja.com The mock exams are inteded to trip you up a bit, and show you how the exam can fool you. What's important is that you go back over the exams, and know where you messed up.
You should only get a 65% the first time around. The second time around, you should be getting high 90's.
From what I've heard from people posting in the forums, people tend to do between 5 and 10 percent better on the real thing than on the mocks, so from what you're saying, you're in a yellow to green zone. Go over those exams again and try to be as green as possible.
Best of luck!
-Cameron McKenzie