"If I’m honest, I’ve been running on fumes for a while. But there were enough milestones along the way to keep chasing that next moment of reprieve. The vacation. The promotion. The vaccine. The remodel.... But then the fumes ran out. And a bunch of life things hit at once, and I couldn’t see any reprieve in my horizon."
By no means do I mean to criticize the author for writing this. I only want to encourage everyone else to take this lesson seriously. I've banged this drum before on HN but it can take quite a bit more banging: Take burnout seriously. Take the initial signs of burnout seriously. If you're vaguely nervous about the possibility that you're burning out, take it seriously.
Don't shy away from it. Take this to heart: If you're sort of starting to burn out, and you acknowledge it, there are steps you can take to prevent it from ever happening! There's every reason to acknowledge it to yourself. It is ignoring it that may cause the bad outcome.
I can speak only for myself in that when I have sensed burnout coming on, I take time off. Sometimes with little notice, because I notice I need it. I get my projects changed. I evaluate my life goals before it's a problem. And I've never really suffered a real burn out yet here at 42, even through some bad times.
While I've not had to do this myself, I also strongly encourage extreme self honesty. It's sad to study for some years and then be in a career for longer only to discover it's not the career for you, but it's less sad that staying there. Do you want to be in the brewery business? Do you want to become a carpenter? Be honest.
(Though I do also offer just a bit of warning that the grass is always greener on the other side of the fence; do take that into account, too.)