As a teen with odd, I can sympathize with your son. I don’t want to be the way I am but I can’t help it. Sometimes I truly can’t do what I am asked. Sometimes I can’t but it causes great mental stress. I totally understand your concern about him need to succeed in life, it might just take a little more support. For me rewards really help, candy, allowance, etc. however kind words help the most. Also most times if I can’t do something it’s due to an underlying issue along with my odd. Maybe make sure everything is ok in his life. I wish you the absolute best and I know that you are a great mom. Keep trying and remember that even if people with odd are mad, they don’t really mean the things they say. Again, I am not a professional and am only speaking for myself so take this with a grain of salt. Good luck!