Apprenticeship Patterns talks about going deep into new subjects as a good way to learn. The risk with going in the deep end is that you’ll sometimes get in hairy situations. Competence can be the edge of the pool: something familiar that you can grab onto. They discuss applying the “Retreat into competence” pattern:
I tried thinking about how this could be applied by designers. A lot of the apprenticeship patterns have you looking at how you can stretch your knowledge. You look at valuable tools and techniques you’re not familiar with and deliberately practice with them.
As a side effect, you’re thinking through tools you are familiar with. These comfortable tools are the ones you can retreat to. That might mean taking a break from the latest prototyping tool to retreat into Sketch. Or taking a break from thinking through multi-screen flows to focus on some motion interaction with Framer.