I seem to spend all my time worrying about my 15 yr old daughter. The first thing I think about on a morning and the last thing on a night is her. I worry that she isn't happy or falls out with a friend. I have an adult son and don't remember any of this worry. She is really sensible, outgoing and normally a happy soul but if she is down I think she is going through a terrible time and get all upset then invariably she is happy again and I have worried too much. She has started seeing a boy (nearly 17) and he has had sex in the past with a few girls - all her friends aged between 15 - 16 have had sex and she is the only one who hasn't in their group of friends - I am worried sick that she will have sex even though she has told me she will tell me if she is thinking about it and get some contraception and at the end of the day its not the end of the world. Why do I worry so much, I know I can't live her life and she is pretty much a perfect daughter , doing well at school and well liked. Any tips for losing the worry much appreciated.