where do you live?
I live in California and I took my drive test last week for the second time.
I did not have to know how to parallel park but rather "parallel backing" backing up straight next to a curb. DON'T WORRY ABOUT IT. I thought I would be sooo nervous and I was before, but during the test it wasnt that nerve wracking. Its just like driving with one of your parents. TRAFFIC CHECK CONSTANTLY. always look in all three mirrors every 10 seconds or so. Even if it sounds bizzare, the DMV take off so much for traffic checks. Always look over your shoulder when going into another lane, even if the lane just starts (like when you want to make a left and the lane you are in splits into two, with one curvy one, because the first time i took the test i didnt look over my shoulder but my instructor said that someone could come behind me illegally) so always check over your shoulder.
just relax and drive how you have been for the past 6+ months.
good luck and I hope you pass!!!