I'd say I write the majority of my code in areas I'm familiar with, but spend the majority of my _time_ on sections I'm not familiar with, and ai helps a lot more with the latter than the former. I've always felt my coding life is speeding through a hundred lines of easy code then getting stuck on the 101st. Then as I get more experienced that hundred becomes 150, then 200, but always speeding through the easy part until I have to learn something new.

So I never feel like I'm getting any faster. 90% of my time is still spent in frustration, even when I'm producing twice the code at higher quality