The crochet chain stitch is the most basic and essential stitch for starting any project. It looks like a braid or spike and is created by manipulating a strand of yarn. Once you have the required number of chains according to the pattern, that will be the foundation from which you will start making the rest of the necessary stitches. You'll need to make more or fewer chains depending on the length of your project. This is the foundation of your project, and you must learn to control the tension to make the stitches look as similar as possible. Don't be afraid to undo and practice as many times as you need.