I was at the end of my rope, tied a knot to hang onto and now that knot is coming undone. Don't know what to do. SS and SD recently came to live with us after their BM passed away. SS is 14 and SD is 13. My son is 16 and our son is 11. Biggest problem is my SS. He is very angry, feels like he is constantly picked on, is disrespectful and always wants to pick a fight. He lies all the time and does not understand why no one believes him.