In terms of social understanding, there's no doubt that I've made a massive improvement.
When I was younger, I had next to no concept of empathy, no clue of how to handle socialising on those rare occasions when I actually had an interest in pursuing it, no ability to 'read' people or appropriately modify my behaviour in differing social situations, and very little grasp on non-verbal communication. There was a gradual improvement from the ages of 9 to 12, fuelled partly by intense observation of NTs, and partly, I suspect, by maturity.
These days, my social skills, taken superficially, could probably be classed as 'almost NT'
, though that doesn't diminish the fact that these skills did not come intuitively and without effort.