Help me my teens are driving me bananas!?

well for your son mabey he will see for him self, theres no changing that just suport him, for your daughter sit her down and talk to her, she cant be afraid to talk to you about it and kind of hint around and mabey show her what you found, let her know you suport her, I had my daughter when i was 15, I know i want better for her i'm sure we all do, but things come up and i'm sure you will understand that too, just be suporive of her so she wont be afraid or ashamed to talk about it best of luck