You shouldn't have trouble unraveling this. You may have fuzzy or split yarn that seems to meld. Short rows are hard to do when you're first learning this. German short rows don't have the wrap and turn. There are no holes. It was a nice smooth heel with almost no visible lines. I was surprised when I first attempted this. My sample actually looked like the teacher's in the video. But Salmonmack is right. Practice this on scrap yarn. Cast on maybe 20 stitches and do stockinette stitch for an inch or two. Then practice your short rows. If you want to do the traditional wrap and turn, this is the only video that I found that made sense to me. Liat is a wonderful teacher.