Hi R, I think we all suffer a bit of what you have. I used to start feeling depressed on a Sunday morning cos it was back to work on Monday morning, Im certainly in a different job now but what also changed BIG time, was turning my mindset round,, I need to work, fact, but that work pays for my wee car, my weekends away in the hills, my beers at the Clachaig etc,,, Start to view your job as a means to all the other stuff you actually enjoy. It took me a long time, and a change of job. Work to live,, (Ideally I'd love a job that got me out more,,but Im in the IT rut lol so I just make the most of MY time, they only pay me for work hours, and not to worry about it out of hours)
I wish you all the best in your search for what makes you happy. Stay in touch on the site, tag along with others, sometimes doors open but you have to go out and start knocking! Keep smiling,