Here’s some tips for sewing knit fabric.
The other one I made is a soft pink terry knit. I used the fuzzy side out on the torso and the fuzzy side in on the sleeves. I used black ribbing and appliqued a black heart to the front. I love heart sweaters and sweatshirts and finally got around to making myself one. I only had two sided fusible fleece one hand and it worked great. It makes the heart slightly stiff, but I’m sure it’ll soften up with washing. (You can see Henry below with a band-aid on his chin covering the stitches.)