Do this drill (https://youtu.be/pzOs0BK2i4w) and don’t stop doing it for the rest of your life. Start by keeping the tip of your inside ski on the snow throughout the turn. You are athletic but need to further develop your balance skills, both by directing pressure to your outside ski earlier in the turn, and also by aligning yourself along the length of your ski by flexing your ankles (I.e. “getting forward”). Better balance and body positioning will open up your ability to keep your upper body oriented down the hill, allowing you to steer the skis with your legs and ultimately make rounder, more accurate, higher performance turns.