Depression

My 13 year old daughter has undergone a worrying change over the past year. She used to be very helpful around the house without being told, she loved piano and would push herself to do well (even compete), and she enjoyed soccer. Although recently, she wants to quit piano, and won’t practice unless we tell her to. She refuses to play sports. She stays in her room a lot and won’t help around the house. She’s always been quiet and reserved, but now she’s even harder to get her to share her thoughts or any conversation at all. She only wants to watch TV, and rarely gets together with friends. She has always done things on her own terms; she has to be self-motivated to do anything. If we encouraged her to try something, she would resist unless it aligned with her desires. Now we try and try to get her involved in anything, even the things she used to be passionate about, but she digs in and refuses to do anything. How do we draw her out? What can we do that won’t seem naggy or pushy?