Knitting -- for lefties only

It's just not the same. The continental stitch, where you hold the yarn in your left hand, is just not a true left-handed way of knitting.

So here's how to cable on left-handed. I messed with this a little and I see how it works. With some practice I might get good at it. When I broke my right arm as a kid, I learned to write left-handed. Sort of. But I'll stick with what I have already learned, being a rightie.
https://www.nickimerrall.co.uk/beingknitterly/knit-tutorial-cable-cast-on-method-lh/?v=7516fd43adaa

If you like how that site teaches, here are its other left-handed tutorials.
https://www.nickimerrall.co.uk/beingknitterly/tag/knit-left-handed/?v=7516fd43adaa

There are three pages. This one has how to knit stockinette. If you are knitting in the round, you just keep doing that. When you need to knit stockinette, is to make a button-up sweater, or work above the armholes on a sleeveless tee or vee-neck vest, or to do argyle.
https://www.nickimerrall.co.uk/beingknitterly/tag/knit-left-handed/page/2/?v=7516fd43adaa

Here's a video that starts with the slip knot. It gets to the actual  knitting at minute 3. It shows how to bind or cast off about minute 6:15. It does not show how to purl.
https://www.youtube.com/watch?v=b21msW3cS34

Here's an entire YouTube account with left-handed knitting and crochet. It has a separate video just for the purl stitch but it also has one for stockinette, of which purl is a part.
https://www.youtube.com/channel/UCm9IbTuEveJMfas9aOkIM-g/videos?disable_polymer=1

So if you're a lefty and you always wanted to knit but couldn't find lessons, here they are. Get yourself a pair of needles and some yarn, and get started!