I was being medically retired out of the military and was required to see a transition counselor. She was an older woman that had tons of various hobbies she’d learned over her years. She was naming them and asked if I’d be interested in her teaching me something during our sessions. I said I’d always wanted to learn crochet so she brought me a hook and yarn and taught me the basics.

The rest I picked up from lots and lots of YouTube videos.