I just spent a few days in Utah and managed to get a BIT of footage.
I only made it through the first 2:00 of that, but I wouldn't beat yourself up, seems like you're doing quite well for a newer rider.
Look at the tracks you make in the first half of that video, they're about 12" wide so you're not carving but doing a dynamic skidded turn. To get into carving (especially on your heel edge) the best thing to do is go SLOWER, and then work on really getting your butt down towards the snow, and exaggerate keeping the knees bent.
I recently had a problem with chatter on my heelside at higher speeds which was making me go into a skid instead of a carve. Slowing down and focusing on deliberately making an effort to heelside carve worked... Also just spend the time in the board, you look like you're having fun and aren't killing yourself, so keep it up!