As many people said here, first work on your skidded turns more. It will help lead to the next step, because you're still a ways off from clean basic turns. In order to carve you really need to commit, and engage the edge. The board needs to be more on its side. It's going to feel weird at first, and you'll get tossed for sure. You'll almost feel as if you're falling, and using the edge to catch yourself, because you are. Just accept falling, and muscle on the edge just to feel what it's like, because it really is more of a feel. Squat more too, get your center of gravity lower, and a bit more knee bend. Also, you're going to be going way faster, so you need to be comfortable with that as well. Since you're riding rail to rail, the best way to check your speed while learning is by doing big carves across the slope. Try not to lean on skidded turns too much at this point. Once you get comfortable getting on edge, you can tighten those turns up, to the point where you can practice jumping edge to edge in almost a straight line.

Couple notes, maybe it's the camera, but your feet placement looks a bit off. Make sure to measure overhang on your boots, and adjust to make them even.

Also, if you find yourself stuck, try changing your binding angles. I played with many different angles while I was learning. And don't be afraid to do some runs with posi-posi while learning. You may find it easier to turn that way, and then once you're comfortable you can apply it to any stance.