Help with shawl pattern

Hi all!
I’m knitting a triangular shawl that started with a garter tab. I did that and then have completed the ‘set up rows’. It now tells me to knit the 19 set up rows.

How do I do that? Pattern is pictured.

Welcome to the forum!
After the garter stitch tab were there several pre-set up rows followed by the 19 set up rows?
It looks like you only knit the 19 set up rows once.
What is the name of your pattern?

From the way it’s worded in the yellowed portion, she’s basically telling you to knit the set up rows (which she’s already outlined above) and then continue as follows…