You have my sympathethies. One because you have a teenager, two because it's a girl. I am a teacher and work with at risk teenagers. Believe me when I say being depressed, mad, and sad are their everyday chemistry. Is she eating? Is she still seeing friends? When she's acting this way, will she talk to you at all? I have found with my own children, daughter 21 and son 16, when I know there is something wrong, I wait until we are doing something together, maybe even driving to the store. I ease them into a conversation about, for example, "so, where's Corey been lately, he hasn't been over." My son will usually respond, "He's been with, Mark, (another friend)." Then he will get quiet, I don't ask anymore questions. Soon he will be telling me how Corey isn't hanging out with him so much and why and so on. But if I ask right out what's going on, I get "nothing". Try to keep the lines of communication open, in a non-threatening way, try talking when you are doing something, keep it light and casual. Try to avoid asking why are you mad, sad, etc. They don't usually know why they feel how they feel, that's what sucks about being a teenager, remember? Don't take the things she tells you lightly, Never disregard her feelings, "oh that's just hormones, or oh you'll grow out of it," to her right now, life is devastating, and she does not care how she will feel later, she only cares how she feels now. You say she doesn't want anything to do with you, but really she does, don't give up and don't take her outbursts personally. Try to remember how it feels to be 13, remember how you felt and what your pain was. Also remember that 13 now is like 16 in used to be. Kids are pressured to do so many things at such an early age. Talk to mothers of her friends. But most importantly do all you can to keep the lines of communication open. Plan a day with her, a movie and dinner. Tell her it's her treat to you because you don't get to spend as much time with her as you'd like to. She will not want to go, but by the end of the day, she may even be talking. Hope this helps. I just read your update and it helps to know some of the things you said, about her having a step-dad, and so on. My daughter resented her step-dad when he came on the scene too. She was about 12, she felt he had no right to tell her what to do, he was not her dad. Even though her dad was not around and hadn't been for a very long time. I didn't understand how she felt then, now that she's 21 she tells me, she resented her step-dad, they have grown close, but it was a long time before she would even give him the benefit of the doubt. She felt he took too much of my time away from her, that's why I stress, spend time together just the two of you.