Depressed nurse

I have been an LPN since 2003. This year I finally got my RN through an online program. I have worked for hospice for over five years prior. I relocated to another state to care for my aging father prior to my first RN job. Got hired with a hospice and now have been fired. I am old and have a teenage daughter. I have not been able to get a job since getting fired last month. The reasons I was fired I am not quit sure of yet either. Only that a few other n urses that I oriented with said I wasnt ready. I never got the chance to prove myself. I was ready. They just had me with a different nurse every time I worked and no body did the same thing the same way.
What do I do now? No experience in a hospita, I feel like a complete failure. Sent out many resumes with only one interview. Went to interview sick as a dog. Did not go well I guess cause no call back. I must really suck and do not even know it. I am getting the idea now though. Any advice?