J.M.
Hi L.:
I agree with Dana.Your son is not a child.He will be a legal adult at 18.Who is going to slap his hand ,if and when he leaves home at that time? At this age, he simply needs to learn the consequences of his actions, himself.If he has trouble sleeping,which is normal at this age,and he feels playing a few games on his computer will cause him to become drowsey enough to fall asleep,then let him.If he has trouble waking to go to school,then he will rethink the method he chose and do it differently.At 17,he should be learning by trial and error.If you continue to issue punishment,as you would a (child) he will continue to act iresponsible.If the grades become greatly effected,then at that time,you can sit down with him, and consider an alternative. The best of luck to you L..