Sometimes I feel the same.. I’m around your age, same years of experience.
Between work, family and obligations, the little time left is not for coding or side projects.
I don’t have much advice to give unfortunately, only an observation. I think this is what happens on an average person when your hobby becomes your work. I noticed last time I switched jobs and I had a 2 month gap, the urge for tinkering and coding came back.
In the meantime, my time off went to other, new, hobbies outside of technology. I’m certain that if I was to make a career switch, after a while, the tinkering urge would come back.