I am a new knitter. I am wondering how to keep my loom stitches even when I am trying to flat knit (a scarf) on a loom (green size, knifty knitter). I am trying to be careful and am wondering how to prevent the edge from curling too. I follow the flat knitting instructions in the "Learn to Knit on Circle Looms" book. I've unravelled my hoped for scarf at least three times!! Help!! Thank you for any help you can give!!