I kicked my son out at 18. he would not work and cussed me all the time. Now he is a good man with a good job and good wife. Yes it was very difficult to do and yes he did smoke pot alot.

I am not sure I would take my daughter on a trip like that but like another poster said..if she has any drugs on her and tries to get on a plane they might bust her right there. I think tough love works most of the time. maybe it is time to make her stand on her own and get her out of your house. You can get in serious trouble for the drugs being in your house. They can take your house and auction it off on the courthouse steps. One thing is you have to take care of yourself first. I know it is very hard to do but it has to happen. good luck!