When you have a career, it's hard to keep work-life contained between the hours of 9 and 5. Do yourself a favor and try. Don't let the day-to-day minutia of your job ruin the joys of life (hobbies, family, spirituality, etc.). If you need to take an hour after coming home to bounce back from work, then do it! If you need two hours, take two hours! Just don't let a hard day at work ruin the rest of your day.