If you haven't learnt a skill in a decade of trying, I'd suggest that it's not one you're going to manage.
If you haven't learnt the difference between learn and master, then I suggest you keep practicing.
Trevor is clearly talking about something which he has repeatedly tried to do better in, yet failed.
His past failures are no guarantee of future results, unless he has stopped learning from them.
And finally, I think that quarter of a career is a significant time in a human's lifespan, especially given the frequency of changing paths means you might have moved to an entirely different field now.
Nobody would disagree that it is significant. 10 years is time to learn anything, but master nothing. The ancient tea masters or the orient would spend a whole life learning nothing but how to brew the perfect cuppa. It's a skill you can learn in 10 minutes, but most certainly not master in 10 years. Technology, well, that's a bit more complicated than tea....
Biting the hand that feeds IT
