One failure in your career can often lead to new opportunities at a new job later on. Being unemployed has a way of challenging your faith in yourself, because of the frantic search, and the paperwork, but brush up on interview techniques, and try to find a job with perspective for the future. You will likely be happier than you were at the job where you were let go. Also try to focus on what skills you have, and what potential jobs would benefit from those skills. This will make you feel engaged in your work, which will help you find more job-satisfaction in the long run.
Don't give up hope, try to look beyond this period of unemployment, towards your future job, and good luck!