If you are still keeping his calendar for him, buy him a planner and make him do that for the next 9 weeks and all of summer. Help him to write in it nightly if necessary. Failure to keep a planner means failure to do homework and to study for upcoming assessments. Dress that boy up. We have a dress code.
Many young men consider it a challenge.
Remind your son to wear proper pants, shirts, ties, socks and shoes. No half socks. No bow ties. No cargo pants. No collarless shirts.