I have been thinking lately about ”learning fast” and how it is a completely wrong and often unattainable goal. Some things one can only learn over time and with deliberate practice. And for many things learning it right is the only thing that matters.
In language learning context one should aim for getting better and forget about being fluent in weeks or months.
Professionally, I feel like rushing to learn things in a new project has always been very motivating for me, but frustration always hit at some point where the simple model that I learned quickly turns out to be more complicated than I thought. And those are the moments I nowadays try to document in detail for future generations.