I have some things in common with you there. I also have struggled with anxiety and depression a lot, and my drinking got significantly worse during an abusive marriage. It helped numb the pain but the result of numbing that pain during the worst times was that I stayed longer than I should have, and then problems with alcohol resulted. It's really better to deal with a situation rather than try to drink it away. It doesn't make anything go away.
Instead of reaching for a bottle next time, maybe try and think of a better way to deal with a situation, or to enjoy yourself...What are you trying to fix by drinking?
These forums have been good for learning how to stop drinking, as well as lots of help for dealing with common problems like depression, anxiety, low confidence, etc.
Hope you stick around