I believe i am gong through depression and it is taking a toll on my marriage, i have no health insurance don'

basically i left from arizona three years ago to be near my family and i left behind a good job and good friends, now i regret that decision and i have become depressed, stopped caring about myself and last night my husband told me i have become a person he doesn't recognize any longer and i am not fun anymore. i need to communicate more, i am just a different person and i need to do something about it. I realize i need to change but don't know where to start and i have no health insurance to see a doctor