Growli, the thing is…you're not her daughter. I know that you know this, and I also know that its hard and painful to think about that fact. But by denying reality, you are literally torturing yourself and holding yourself back from the life that you COULD be living.

I echo other posters when I say that I think the best thing you can do for yourself is to find a qualified T, and begin to process this attachment and the deep pain that it holds for you. Only by doing that can you move through the pain and onto a meaningful life.