I've made a jumper, and it fits!
Although I've knitted one or two garments in the past, I tend to shy away from them as I so often see even very experienced knitters dissatisfied to some extent with their finished pullover or cardigan. However, I'd had this pattern and the specified yarn sitting neglected for some time so I finally got started, took as much care as I could at every stage, kept going until it was done, and I'm so pleased with the way it's turned out.
It's the Floozy Too by Libby of Truly Myrtle, made in Yarn Floozy merino/silk/cashmere. The pattern is very clear, and the colour work section is much easier than it looks as it's worked with slipped stitches so you're using only one colour per round.
I knitted a gauge swatch or tension square first, used the measurements of a favourite jumper to choose which size to knit, measured the work and tried it on frequently as I went, and then blocked it carefully to size. That all paid off. As I was using hand-dyed yarn I alternated skeins every two rows after the yoke; I found Mostly Knitting's tutorial on picking up the underarm stitches when beginning the sleeve very helpful.
This project has given me a lot of confidence, and I hope this post in turn will act as encouragement for anyone who would like to have a go but needs a gentle push!