When I finally had a proper stitch, I gathered the long, cut-out piece to the length of the skirt. I sewed it in place. Then I pinned on the top of the skirt to add a stay stitch. I finished hemming the skirt and it was done.
Finally, my finished product. I love how it turned out. It's definitely my favorite.
(I don't have great lighting in my room, but you get the idea.)