Hell, I've only had my license since a week before i turned 19, i just took my time with it. Ain't no big deal man. Like, once you get it, you'll know, driving on your own feels like you were born to it once you get it over with. Like i can do it in my sleep.
Well to summarize this as best I can, I've had similar problems before. Night's the worst time to experience it. I've had sleepless nights due to anxiety. I wish you the best. Fight it off as best you can