I know the dates can be confusing. I was like that too,then my test came and I think I overstudied,coz I don't recall the practice test even being made that way! lol!!
But with my test,there was only 2 dates that I remember that was asked. Most was easy. Just relax,you'll do fine.
If it helps,try what I did. I answered the questions I'm 100% certain of FIRST. I was sure of 16 of them. The 4 last ones,I answered as best as I can....I did 20/20
which surprised me when my interview came and they told me my score was 20/20.....
Best of luck!!!