interesting and useful article. I was on the other side of the struggle too - reaching to my student to figure out why thing don't go well. she was simply bored. finding a better fit within the lab was like observing a miracle.
also, I don't see anything bad in changing one's career. sometimes people are forced to do it. why not to do it if you simply want to. these walls are in your head. no need to respect them.
https://www.bbc.com/worklife/article/20230113-the-mindset-to-re-kindle-lost-passion