I know what you are going through. I have the exact same with my 13 year old. Nothing works at getting him motivated to get caught up nor does he care about it. I have so much Stress it is becoming unbearable. 504 plan with my Son’s school doesn’t help, either. They have given me a lot of trouble over it and I feel it exists only to make us happy that it does. Last year we had trouble with his teachers following it and this year with remote learning, none of the teachers reach out. Some don’t even reply to email sent to them. I feel the school abandoned remote learners. I have no idea where to go from here. He both sees a psychiatrist and therapist and I feel like he just doesn’t care to help himself after everyone does.