I think in general it’s extremely important that everyone has a hobby, or at least something fun to do outside of work. Artists I’m talking to you too, because if your job is music or visual art, I think you should have something totally unrelated to that to do in your free time. For example, I've been working on a painting for my brother’s boss in my free time, and I’ve also been knitting a scarf! It doesn’t have to be anything crazy and definitely not profitable, but it really helps with separating work time from free time.