My 18 year old daughters behaviour has become increasingly worrying over the past few years. I first noticed something odd when she was about 8/9 and my niece came downstairs and told me "... said if i let her touch me she said i could come to lego land with you", but the thing was we weren't even going to lego land. At her school she was considered a bully, even though she was very smart and had some of the highest grades in her class. When she was about 10 I'd caught her and my nephew with pockets full of stolen sweets and random items after we'd been shopping so i took them back to the store, the guard told them off and all she did was laugh. In her high school she become increasingly hostile, manipulative, got a criminal record for stealing, stole from me and her little brother, stole money from friends. She has been rarely violent but she attacks emotionally and says dreadful things about you or your personal life. But she can be very charming, asks for money even after she has shouted or verbally attacked me and I can't help but give it her. She puts on a face of gold when meeting people for the first time. She constantly lies with such ease, and isn't afraid to tread on anyones feelings. Her friends have said she has a very sick sense of humor and doesn't care what she says to them and isn't afraid to hurt their feelings either. She doesn't have a job and uses one of her friends only for money and has described him as her "personal atm". No matter how many times i try and connect with her she refuses and would rather stay up in her room by herself or go out. She has been taking drugs either everyday or every other day for the past 2/3 years, stays out for up to 3 days sometimes without coming home or telling me where she is going. I've had her bags packed ready for her when she comes homes sometimes, but all she does is look at me and laugh then makes herself at home like nothing has happened. What am i to do? Is there no hope for my daughter?