Its winter. The roads are icy. Prepare.
Winter weather presents many hazards including slippery roads (ice/snow). My first year in Colorado I remember being told a safety driving practice beneficial to us former flatlanders. When traveling down hill on a road, slow down during in the straightaways and ease off the brake in turns. Reason: Loss of traction. As you now, maintaining tire traction on the road surface is key to remaining on the road. The inertia a vehicle experiences in turns may be sufficient to loss traction and leave the road.
So think ahead. If the road is snowy/icy/black ice, you travel speed should be lower than if on dry pavement. When heading toward a turn, even if already traveling at lower speeds, gently apply your brakes to slow even further and then ease up/take foot off brake during the turn itself.
Be safe and stay on the road.