It sounds as though you would really benefit from seeing a therapist right now. If your therapist is not an approved provider for your new health plan one idea could be to phone him/her and ask for the name of other providers they would recommend for you. You can then check with your insurance company to see if any of the names are providers for your new insurance policy. Your therapist will understand your dilemma. This happens all the time to patients. Your previous therapist can phone the new therapist to give them the Cliff's notes of your situation and you can sign a medical release to have your old records sent to the new therapist if you choose to do that. That way you can hit the ground running.
Another thing that might help in the short term is to write a list of things that you are thankful for. When we stop to think for a moment of how much we actually have, it can help to reset our moods. It's easy to fall prey to black and white thinking (i.e "I will never love again." "There aren't any good men out there.") but these exaggerations most likely aren't true and add to our suffering. Don't forget to breathe slowly in and out.............