Hi and Welcome,
I'm glad that you found us.
I used alcohol to help me cope too, and it took over my life and nearly destroyed me. You will be much more likely to be able to see your daughter, if you live a sober life. Have faith that things will work out with seeing her.
Have you talked to your dr about depression? It could be that the alcohol is causing the depression, or if the depression came first, then medication might help.