Watched the tutorial. What she doesn't do is understitch the facing (from years of clothing construction). It makes it easier to roll to the back. Trim your seams to varying widths (1/4"-quilt seam & 1/8"-facing seam). Press seams toward facing. Stitch thru all thicknesses on the facing as close to the seam as possible (1/8"). Then follow the rest of her instructions.