I have just twigged that ds is a perfectionist. I suspect he won't have a go at things that he doesn't think he can do well; he gets extremely frustrated when he can't do what he wants (eg. trying to draw a heart-shape the other day gave us 5 full mins of shouting, 15mins sitting on my lap sucking his fingers, and a point-blank refusal to try again).
He resists all the gentle encouragement I've been able to think of and he's a stubborn little so-and-so so I'm kinda at my wit's end.
Hints and tips, please?