I am having a very difficult time with my 17 year old who will be turning 18 February 5th. HE is currently a senior in highschool and has become someone I don't even know anymore. He has become a pothead, failing all his classes, cutting school, etc. He is so disrespectful to me (i am a single mom) and his grandma who lives with us. He yells using the F word at us and doesn't listen to anything i say. I have not control over him and after i tell him i ground him or simply tell him to stay in for the night he will pretty much say no and walk out. I have tried to stop him but then it starts to get a little physical and i back off and let him go. I have been working with his teachers, the school administration, talked to my pastor and I pray daily for him, for me to be able to guide him and for him to be safe. Nothing works, over the course of one quarter in school he is a different person. He is now going to be kicked out of high school and sent to the "bad kid" school for truancy. HE doesn't do anything he used to, just gets high (in my garage i might add which i have fought over and over about) and wants to be out of the house all the time. I told him today if he didn't show respect to us and be mindful of the house rules, then on his 18th birthday he will have to move out. This has been starting since March and i have been dealing with it over the course of that time, but I just don't know what to do anymore. I want to help him, but he doesn't want to be helped, nor can he tolerate me it seems. We are a close family and I don't understand what is happening. When it all began in March he actually agreed to see a therapist, and the therapist thought he didn't have a problem outside of being a teenage boy, but now it is out of control and more than that. Thank you for listening.