I have coached people before in real world riding, and it can be helpful, but it's nowhere near as consistent and effective as a proper tarmac course. There are many parking lot courses that teach you skills that will improve your road riding, including twisties and even track days.
I'll plug Total Control, since I teach for them. If you are still getting comfortable, but have a handle on the basics, take their Intermediate Riding Course. After that they have two levels of advanced courses. The first class I ever took after MSF (about two years after) was the Total Control ARC and it improved my street riding immensely.