Don't keep flooring it. Spinning tires in snow polishes the surface beneath them into ice, glazes the rubber, and digs you in deeper. After two failed rocks, stop. Each subsequent attempt makes the recovery harder.
Don't dig with anything sharp near the tire. A bent tire iron, a thin shovel edge, even a key — anything that punctures a sidewall converts a stuck-car problem into a stuck-car-with-flat-tire problem.
Do call winch-out recovery. We arrive with proper winch capacity, snatch blocks for awkward angles, and we know which corner of the vehicle is the right pull point for your year/make/model. Standard $249 / hour rate, 1-hour minimum, $224 first hour online.