Make an effort to do more interesting things outside of work. If your working week consists of getting up in the morning, going to work, coming home, having dinner, slumping in front of the TV and then going to bed, your job is going to have a disproportionate impact on your overall mood. Try to fit a couple of social engagements into your week – a dancing class or an art exhibition, perhaps, or just a catch-up with friends you haven’t seen for a while. Having something to look forward to during the week will help to make it more bearable.