hello.......my sister is 14 year old. she is usually very depressed and she cries a lot. she says that she may die the next month. we alaways try to ask her about her problem but she never tells anything about it. she has very loving parents all of them love a lot. earlier she was very naughty and active but now she is becoming dull day by day she seems to have lost interest in her life......plz suggest wht to do