I’m not scared of colour, but I am definitely early in the learning phase and trying to get more comfortable and confident with it. So, these seem like great suggestions to help with that. (Although the article is focused on drawing, I’m sure painters will find it helpful.)
Aside from actually working with paint, which I intend to do more of because that’s ultimately what I want to do, I’ve ordered some nice coloured pencils to introduce more colour to my drawing. I’m sure that will help with my colour skills when I come to paint.