Hello sjg,
I'm sorry you have so much going on for you right now. I think anyone would struggle in your circumstances, even those without problems with depression and anxiety.
You say you've been diagnosed with depression. I've had that in the past too. Have you seen your Doctor recently? There are treatments, good ones, available for that. I would be honest with him/her about your drinking too. When I gave up alcohol my depression improved significantly.
There is help available. Counselling also helped me very much.
I'm glad you reached out for support here too.