Very similar here. I am 68.
While I have never developed software professionally, in the four decades I have been using computers I have often written scripts and done other simple programming for my own purposes. When I was in my thirties and forties especially, I would often get enjoyably immersed in my little projects.
These days, I am feeling a new rush of drive and energy using Claude Code. At first, though, the feeling would come and go. I would come up with fun projects (in-browser synthesizers, multi-LLM translation engines) and get a brief thrill from being able to create them so quickly, but the fever would fade after a while. I started paying for the Max plan last June, but there were weeks at a time when I barely used it. I was thinking of downgrading to Pro when Opus 4.5 came along, I saw that it could handle more sophisticated tasks, and I got an idea for a big project that I wanted to do.
I have now spent the last two months having Claude write and build something I really wanted forty years ago, when I was learning Japanese and starting out as a Japanese-to-English translator: a dictionary that explains the meanings, nuances, and usages of Japanese words in English in a way accessible to an intermediate or advanced learner. Here is where it stands now:
https://www.tkgje.jp/
https://github.com/tkgally/je-dict-1
It will take a few more months before the dictionary is more or less finished, but it has already reached a stage where it should be useful for some learners. I am releasing all of the content into the public domain, so people can use and adapt it however they like.