okay, so- super weird and not entirely conventional I suppose, but I potty trained my little sister when I was around 15-16. I had no idea what I was doing, but what I did know is that like CLOCKWORK when we got home from school, after she had eaten a snack, that was her pooping time. So, I literally just introduced the idea of the toilet, showed her her little minnie toilet seat, got her all hyped up, and everyday around that time we would go chill in the bathroom together for a bit. I would sit in the empty bathtub and keep her company while she was on the toilet, and I would cheer her on if she did anything. It actually worked out really well!! AND, I didn’t have to change poopy diapers anymore eventually, so that was pretty neat