Sometimes you make a swatch, adjust the tension, but when you start knitting the actual garment, the gauge changes and the result won't fit. I made one of these, but that will have to be reknit. I'm not very excited about it, but I'll power through it. Normally I read the instructions before knitting something. And that's what I did this time, but it did not make any sense. In this case I had to work as I went and then it was all perfectly clear.
To end it on a more positive note, I started a Lanesplitter skirt. Oh the joy of aran and 4.5mm needles after knitting fingerweight! It's hard to put this down.