I'm in my 50s and I'm currently mulling the conundrum of being an artist and designer with art and design side projects, and now having them sidelined by a new-found interest in p5js. I'm getting little glimpses of observing myself and how I'm responding to my side-project time being increasingly compacted by parenting, work and also a recent flush of training for a mountain run (in order to maintain some fitness) - I also had a temporary obsession with learning wheelies on my bike, which further compacted time available for javascript learning outside of work hours.
Anyways - this article was a good read, and I've enjoyed the observations in the comments - especially about the body and the ebb and flow nature of time spent on side projects.
I had a kind of burn-out last year where I'd work 'til 1am and then feel drained and grouchy the next day. A new found interest in sleep has been paying dividends, but I need to lean into it further.