Don't let it get you down. A few years ago when I got laid off, my unemployment ran out, and I had to get a job ASAP. Any job. So I got hired at this one place doing low level computer support. It was a significant pay cut compared to my previous job. And it had crappy hours. But it did have medical benefits. Anyways, I was determined to find a better job. And after about 6 months, I did find a better one. Better pay, benefits, hours, and so on.
Also, companies are less inclined to call people for interviews if they are unemployed. So now that you have a job, I think you've improved your chances of finding a better job out there. Good luck!