Wikipedia has a huge impact in people's lives, particularly in non-English languages, and there's so much work to do, and so much of it feels urgent and necessary. I really responded to that, and I wasn't careful, and burnt myself out. (This was not the fault of the org; Wikimedia is largely a do-ocracy, and if you're intent on working through the small hours of the night, there is very little anyone can do to stop you. Co-workers who saw what I was doing did urge me to pace myself and exercise self-care.) By the time I realized what I was doing, I was in a pretty bad way, and felt like I needed a complete change of scenery to get back on my feet.
Interesting! I see that happen to people in the non-tech non-profit world a lot. Well, thank you for your service, and hope you are starting to enjoy a rest well deserved!
Sorry but now I'm curious, why did you leave?