well step one is acknowledging, and that you have already done on your own. Yay! good for you. Step two-you just have to be more conscious. I know it's hard, especially when you hang out with others then go hang out and you have to be careful with words or topics, but hey- if this is a friendship you treasure-do it to the fullest. This person needs you. Possibly desperately. So just keep working, don't get down on yourself, just see it as a means of getting her into a much healthier place! It's a little tough to understand you due to our language barrier, but in your last question I would give her space but if its three weeks or something, just leave a message, and be like, hey, I'm here for you, I support you and love you. You don't have to respond, I just want to know you are here and okay. Sometimes that means a LOT.