Short-term pain for long-term gain

I saw the psychologist today. I've gone downhill again since the weekend, and seeing her only made things worse. On the way home from my appointment I drove faster that normal, honking the horn in frustration, not particularly caring if I hit something. My laptop has been playing up so when I got home I took it to Wharf IT who stay open till seven or sometimes later. My chat with the very enterprising owner of Wharf IT (and three other shops on the wharf) was probably the highlight of my day. It's always interesting to see how others earn a living; she did so by keeping her fingers in as many pies as possible. It turned out I had 33 viruses, which have now been eradicated, but more seriously I might have a dodgy motherboard - if that's the case I can kiss goodbye to this four-year-old laptop.

Every day at work I plumb new depths of disengagement that I didn't know existed. But I still can't motivate myself to look for a new job. I talked at length about this with the psychologist. To my mind there are three reasons why I can't get my A into G:
1. Planning anything or thinking about the future only makes me feel worse.
2. Because I don't know anybody, my job prospects are reduced by 70%. The only channels available to me are newspapers and websites like Seek - any jobs that I could possibly apply for on that site will get about 582 applicants so I'd be wasting my time applying, and even if I did get the job it would likely be just as depressing as my current one.
3. I feel I should be grateful to have any sort of job right now, even a depressing one.

Much of my reasoning is irrational. For the sake of my long-term mental health, I really must look for a new job. The process might be painful, but it's a case of short-term pain for long-term gain.