I strongly recommend checking out the Cynefin framework: https://en.wikipedia.org/wiki/Cynefin_framework https://en.wikipedia.org/wiki/Cynefin_framework Knowin

I strongly recommend checking out the Cynefin framework: https://en.wikipedia.org/wiki/Cynefin_framework https://en.wikipedia.org/wiki/Cynefin_framework Knowing which context you're in provides a useful tool when choosing mental models to approach the problem. Having said that, 99% of mental models is practice as adopting a mental model is often an emotional problem too. For example, while Cynefin may suggest an iterative approach for complex domains, you'll still need to be emotionally able to deal with the natural outcomes of iterative problem solving e.g. being comfortable making decisions with incomplete data, handling failure, communicating progress when there is no clear way to estimate scope.