Step 1: Putting the 'chain' in chain mail
Step 2: Going loopy
With your two chain stitches completed, start the double crochet process again in the third stitch away from the completed double crochet. This row is the one that takes the longest as it’s the one that requires the most amount of concentration - it gets easier as time goes on!
When you get to the end of the row, you may find that you have more or fewer chain stitches to work with (if you weren’t counting them), just try to keep the stitch as even as possible in relation to the other stitches.