Hello! I was homeschooled and I have ADHD. The opportunity for a customized education did wonders for me lol. I’m in college now.
I remember my motivation was at rock bottom around ages 14-15. I procrastinated so bad I made myself miserable but I did it anyways. My poor mother tried everything.
Have you tried online classes for your teen? I took several online classes throughout my homeschool education and they helped keep me accountable. The classes I took met live once or twice a week and teachers took attendance.