Ask HN: Did you ever stop improving your programming?

I've been a programmer for many years, in multiple languanges. Up until a year or so, I was very proud when I finished, what I thought at the time, a big and hard project. But then, few months after, when I looked at the code I started thinking: this line shouldn't be there, these 10 lines could have been greatly improved, why didn't I use <insert famous class here> instead of writing 1000 lines of garbage, and so on. But lately I feel like there's no more great self-improvement, I look at my recent code and say "well, that's perfect". Did you ever feel like this?