Yes, when I was very young, I thought if I was good enough, he would stop drinking.
Magical thinking, and perfectionism. Look for these I think.
Nothing she ever did or could do would change her bio mom.
I think she might be striking the fridge because she is mad.
This is not fair! Why is her mum a drunk! Why did she treat us so bad!
Wait, maybe this is my therapy.
I was told my anger was not "right" and to "be quiet" because I would be in trouble.
I believe your SD will be fine, because you are aware.
Plus, being a teen, wowee lady, you could have some tough times, but as long as everyone is honest and open, it makes lightyears of difference.
It helped me tremendously when my children were in trouble.
Thank you for letting me share all that. I feel better. I hope you do too.
:ghug3
Beth