I restarted mine at 41. I was lucky to have saved money, but I just walked out of my 25+ year job with a 2 week notice. Decompressed for a year living off savin

I restarted mine at 41. I was lucky to have saved money, but I just walked out of my 25+ year job with a 2 week notice. Decompressed for a year living off savings, and went from hardware to software engineering. Still engineering, but radically different tasks: I went from designing memory architectures (boring as hell) to writing web and mobile apps. (I also went from working with creepy old dudes to more exciting younger people.) It took a lot of therapy and coaching and crying and some medication, however. You probably can't do this alone, so definitely get a therapist because it sounds like you are depressed.