I did these a long time ago when I was helping a few friends learn “long-distance” how to work a single crochet stitch.
Rule #1, you are not allowed to judge your crocheting for at least 4 rows
You begin with one loop.
Insert your hook into the next stitch,
catch the yarn you’re holding with the hook,
and bring it through the “inserted” part.
You’ll have 2 loops on your hook, and it should look like this:
Wrap the yarn around the end of the hook
and bring the yearn that you just hooked through BOTH loops that were on the hook
You should end up with one loop left on the hook to begin the next new stitch
here’s a finished row