[ferguess_k]

I noticed that I can still do long sessions if I have to crack open a problem ( I started coding around 35 and now I'm 40+), but the burnout may prevent me from coding for a few days.

I do think it has more to do with daily chores (work, family) than my age. I noticed that, despite being easier to get frustrated nowadays (because I get exposed to more sources of frustration) than I was in my 30s, I'm actually more perseverant than myself 10 years ago. I managed to be very close to wrap up a side project, the first time in my coding life. Of course the scope is smaller than my previous projects but I'm surprised that I didn't back down easily, considering how many times I banged my head during the first few weeks.

I guess being exposed to more frustrations does improve ones resistance to it. To be precise, I get agitated easily, but that agitation doesn't seem to burn me out in the middle term -- while in my 30s I didn't get agitated very often but every time it burns me down to the point I left my side projects.