As I can't possibly be the first American to figure out, driving long distances works best if there's some good food at your destination. I learned this recently, when the desire for Japanese groceries set me forth on my longest solo drive yet, all the way to H-Mart in Edison. There was also a practical purpose, which was to start getting used to the idea that wherever I work next will likely require more than a five-minute drive, or at least, I shouldn't be ruling things out that would. But in the immediate moment, the catalyst was more nori related.
In any case, while Edison is far, it's also a simple matter of driving along the main street in Princeton and not turning until you reach the supermarket, about 45 minutes later. But it was a good exercise in paying attention to lanes ending, merging, over a long(er) stretch, on streets I don't know (as well). It was also, I suppose, my first solo urban driving, if New Brunswick counts. I'm going to say that Nassau Street does not.
Driving to Edison may have mentally prepared me for the next pedagogical step, which is driving alone to Lambertville, aka the most interesting destination reachable by a few minutes of highway driving. Highway driving and parallel parking. Once these two are sorted, as in once I can readily do them alone, I will truly know how to drive. Someone just needs to dangle a pastry in front of me for these tasks, and they too shall be accomplished.