15yo want to stop school!

My son claimed he can’t learn school work. Can never pass exam. Goes to school simple because had to. Breaking school rules. Rude to teachers and classmates. But he hasn’t hurt anyone or hang out with bad company. He just goes to school and back. No modern gadgets — hp, ipad, laptop, etc. No he wants to stop school. What can we do to help? He is hopeless and so are we. He even said counselling doesn’t work on him. So tell us to stop talking to him or ask school Counsellor. He was ADHD (more on anger management issue). Stopped the medicine when he was Sec 1. Next year he is to repeat Sec 3:( Is there a school that focus more on activities than academic that we should try him to? Any suggestions?