I coded in my own firm with a partner, then on my own, then burnt out after about 12 years. Could not get any motivation to service my own clients, or complete

I coded in my own firm with a partner, then on my own, then burnt out after about 12 years. Could not get any motivation to service my own clients, or complete my projects. I took a job in an education setting, a much more diverse role, hardware/software/networking, very little coding, much less hours. I arrive at 8am then leave at 5pm on the dot everyday. I walk to and from work. I work very hard, but not at all when I'm at home. I only look at email when I am sat at my desk. I don't think much about what I've done on a given day, or what I'm going to do - just do what I'm told. The scene in American Beauty where he finds a job with the least possible responsibility reminds me of my life. I look forward to each day. I don't dread Sundays. I have a good nights sleep every night. It can be done with variety!