I'll be picking up the book this article sources, "Fully General System For Learning To Do Hard Things" by David MacIver. To a small degree I've always done this as I learn and try new things. I really like the idea of finding an analog to the hard thing that you already do and slowly changing it, mastering it and iterating on it until you've mastered that hard thing.
So it’s not a guarantee but rather a structured plan to follow if you’re not sure how to start mastering the hard. He offers two approaches—one process if you already know what success looks like and one process if the definition of “success” is more subjective. In both cases, you’ll follow these steps: