I don't get test anxiety so I don't really understand it.
It's a test, yes you have to know the material but if you have good test taking skills it makes things drastically easier.
DO NOT CRAM. You said it yourself, you know it or you don't. Study before the exam for ~60 minutes every day then take one or two days off before the exam. I'm too lazy right now to go find the study but there's a few out there that have shown that you stop retaining information after X amount of time studying. If you're not retaining what you're looking at why are you spending that time doing it when you could spend it doing something productive?
Do not let the test and studying interrupt your routine. For example, if you go to the gym every day continue to do so. If you have to cut it short then fine but still take the time to make it there.
Eat a good meal the night before and the morning before, lunch too if its in the afternoon. Don't overdo it though.
Make sure you get a good night of sleep a few nights before the test and especially the night of.
Take your time. Read the question. You're correct in saying they try and trick you. They word the questions in a way that you need to pay close attention because they give you answers to either way you read it. Does that make any sense? Again, I'm on day 4 of 6 and it's our busiest week of the year so I apologize for m crap grammar and questionably understandable statements.
Read all the answers, pick the best two, re-read the question and then pick your answer.
Stick with your first answer. It's been shown that its pretty common to select the correct answer originally and then change it to an incorrect one. Pick your answer and move on, trust your gut.
Remember, it's the NREMT-
B. The B is for basic and the material is just that, basic. Scene safety, BSI, cABC. (Little c is for consider c-spine but remember, you can live paralyzed, you can't live without adequate ABC.
I didn't read the whole thread, sorry if I repeat something. The online test preps are great. Not only do they help you study and the better ones give you rationales to answers but they also help get you in the NREMT "mode". The questions aren't verbatim but they are similar in their structure and the 4 crappy answers. Pick the one that sucks the least
Take a deep breath. It's just a test...you're not going to die if you fail. Relax, focus and get ready to start applying for jobs!
Good luck!