I really liked the rest of the comments but I’d like to offer an alternative to all of the advice about limiting the amount of work. I suggest finding a projec

I really liked the rest of the comments but I’d like to offer an alternative to all of the advice about limiting the amount of work. I suggest finding a project, feature or initiative at work that ignites your passion and puts you into flow (as defined by Mihaly Csikszentmihalyi). 12hrs will pass by quickly and you’ll be able to regain some of the focus you are missing. If you can’t find this at the place you work, maybe consider changing workplaces.