Getting my driver's license (hopefully)

So I was scared to drive when I first got my learner's permit, like so scared that the first time I drove my hands literally shook like crazy and then I almost ran into the side of a building (still embarrassed about that onešŸ˜«). Well, I turn 20 in December and my learner's runs out on my birthday. I've been practicing and am much more at ease than I ever thought I'd be with driving and actually rather enjoy it now. I'll be going to DMV today to take the test.

Any advice on what to do/what not to do aside from the obvious? How do I keep from getting too nervous? What mistakes should I avoid doing?

Thanks in advance!

Update:

I DID IT YOU GUYS I'M SO HAPPY!!!!!