No you are not alone. I know exactly how you feel. Today I could put DSD's (13) head through a wall, not that I really would but that's how I feel. The attitude, the language, the I don't give a crap, the mums always right you n dad aren't important anymore, the I don't give a crap about my sister or brother because they are only my HALF siblings. It was dh's birthday today, she couldn't even space 2 minutes to give him a phone call. I am so so over it. It's sad really. I hope things improve with your DSD soon .