Genuine question, I also like to use my smartphone less, but what about when you are in the lavatory? I have a habit of using my smartphone else I cannot go. Has anyone been able to solve that?
I'd challenge that. I suspect you can go fine (or should go to a doctor) and just don't like boredom. You're not alone! Provided it's not a medical issue, it's a mental one, and the answer is practice. Leave your smartphone outside, you can sit idle for 3-5m. If you're spending much more time than that, it's a medical issue.