I don't live to work anymore, I work to live.
I still get stellar marks at work, i know my shit and i'm good at it. But the illusion has worn off for me. It's just a job. I meet deadlines, but I also push back on deadlines that require crunch time or weekend work. I push back on weekend or late time work completely now. I'm not embarrassed anymore to say "I don't want to work on the weekend, and its unreasonable for you to expect me to, so that project will get done next week".
My job is a means for providing for a comfortable retirement, and a comfortable life. I enjoy tech, but I enjoy my hobbies more. My hobbies keep me healthy and happy, work doesn't do either of those two things. Work is work, that's fine. But let's call it what it is. Let's not forget to live too.