He sounds like my DS. This year we got him into a VCAL program, he has excelled! He did 1 day a week work experience, 1 day of TAFE and 3 days at school. It was like the penny finally dropped, I have not had one teacher call me. He has just been offered an apprenticeship by his employer, starting in January.

Perhaps you should focus on him getting a job over the holidays. No employer will put up with him yelling or lying so it might be a good learning curve for him. Then he can decide whether he would prefer to work or go back to school.