She ought to be going to school, being a kid, having fun with friends and instead she fears asking for help, screwing up and puts pressure on herself to be perfect. And now on top of that she has fear of not knowing if she'll see Daddy again and believes it's my fault.
The first part of this is something I see in my kids as well (they're older than yours).
The second part, you might have to talk to her about. Which is tricky, because you don't want to badmouth her dad to her. What I've told my kids -- because AXH has told them things like "I'm sad all the time because your mother took you away from me for no good reason" -- is the truth about alcoholism: That, like any disease, it is his choice whether he is going to get help or not, but that as long as he is not getting help, and as long as he is drinking, he is not healthy and the disease he's choosing to not seek help for is causing him to behave in ways that are not healthy for us to be around.