@meanmommy33 is spot on. Though now things may look dim, there is light all around you in your life that you know is there for you. You must keep doing what you are doing trying to get a job as that will allow you to then get somewhere else next.
Maybe start a journal to write things down when you feel most down so that you find a way to let things out. It is all step by step but always focus on the positive and let go of the bad stuff so that it lives in the past and not block your future.