Crocheting is not a sport. It is a way of making decorative objects, ranging from doilies to sweaters to potholders to placemats, using thread or yarn and a crochet hook. Once you've learned to make chains, make single crochets, double crochets, half double crochets, and triple crochets and turn the row without losing or gaining a stitch, you're in good shape. But these are not called rules. They're called techniques. By the way, how old are you?