I'll give it a go. If I get it wrong someone else will correct me.
Maybe it will help if you realize that the first and last 3 stitches are the border of your cloth and not part of the pattern that you work in between.
You will repeat the stitches that appear between the stars *p7 k3*
I am confused about the instructions K3* p7 K3* across to last 3 stitchesK3(border)
OK, lets see if I can do this.
Purl 7, Knit 3; Purl 7, Knit 3; (you will p7, k3 as many times as it takes to have 3 stitches left on the needle)
Knit the last 3 stitches.
I only put the knit 3 sections on different rows for clarification.
HTH You'll undoubtedly get the hang of it soon. I started out with crochet too and had a heck of a time getting knitting to work and it only happened because I found KH.