At one point when I was first learning and after laying my knitting needles aside for too long, I used a Knook set to reteach myself to knit…especially as I learned to crochet first a year or two previous.
Understanding how stitches were created using the hook part was very helpful.
I also used worsted cotton variegated yarn to better understand what a stitch looked like.
Remember, a knit stitch and a purl stitch are the same stitch, knit is considered the front of that stitch, purl is the backside of that same stitch.
For practice knitting I made a lot of dishcloths in this pattern.