Yes. My mom's old partner would put us in the corner as a form of punishment for hours on end.

That said if you think I'm suggesting OP stares at a wall then you're missing the point. Obviously the hope is that they would A) do their hw or B) read a book. Boredom is a powerful motivator

Edit: I realize you might have meant this in the opposite direction I initially interpreted it. If that's the case then the key thing is that I originally suggested they observe how they naturally engage with the loop and adjust accordingly. No two people are the same. So any advice I give will need to be adjusted to OP's unique way of living and thinking

Life isn’t about “doing things” or being “productive.” But about learning yourself and coming to terms with who you are. If you can do that then you’ll be better equipped to navigate the unique challenges of your mind

Sometimes the stress of responsibility is enough to cause executive fatigue and make you want to isolate into addicting habits. The important thing to try here is to try something small and reward yourself for it. While also putting in measures to prevent yourself from easily slipping back into those distracting habits (and I mean real physical measures not fake mental promises and dreams about being better)

I second the seclusion idea. We cannot be trusted with distractions. Remove them and you won't have to resist or use will power. Speaking of will power, we don't have as much as others. I've found routines are my lifeline. Each task or step has to complete near the beginning of the next one. The closer the better, so there is as little time for a distraction to interfere with the flow. One last thing, it doesn't get better or worse. You ability to cope gets better or worse. We have ADHD, you don't grow out of it any more than a person with a missing hand (an an extreme example) grows out of it. They work around it. They can't use both hands, because they don't have two hands. We have our personal ADHD symptoms that won't go away. Our only way forward is to identify them, accept them, and then work on ways to mitigate them. You wouldn't fault a one handed man for not being able to clap like everyone else, so don't beet yourself up over your "failings". Help yourself of tomorrow by finding how to cope with your symptoms today.