Yeah, I used to feel like **** every Sunday when I was in sixth form, I was just so bloody miserable. You know it's bad when you start to feel down on a Friday night because you've realised how quickly the weekend goes! I have no idea if this will help but what I used to do was write down a list of things I was feeling crappy about, e.g. around this time 2 years ago, the list read that my boyfriend had just broken up with me, my favourite chinchilla I'd had since I was 11 had died, I hated my A Levels with a passion and Christmas was over and winter was really depressing. Then write a list of things that make you feel a bit better and correspond to the bad stuff if that makes sense, so at the same time my happy list read that the boyfriend was, after all, a bit of a prick, that my remaining chinchillas were due to have babies in a couple of months, that my A Levels were vital to getting into vet school and that the nights were already getting longer so it would soon be summer and more cheerful weather etc. You could also try writing lists of things you want to accomplish, like I wrote down how many weeks of work experience I wanted to get done that year, how much weight I wanted to lose, things like that. I do think that finding another job is probably tantamount to your happiness so maybe spend next weekend really devoted to job hunting and get some interviews lined up. Proactive behaviour always makes you feel more in control and happier as a result, so if you take the first steps towards finding a new job then you'll feel better, and better still once you move. In the meantime you could always try pinkpinkuk's suggestion and improve the situation at your current job.