Dude...

> I get the feeling that the “just be disciplined” comment often comes from people who didn’t have these addictive habits seared into their minds from an early age

I had the exact same mentality as you. I wrote the exact same stuff right here on HN, you can check my older comments. I did the same stuff, the lengths I went to lock down my devices...

That's not the case, older people are not immune because they grew up with less tech or anything. It's (probably) just you.

Turns out I actually objectively had far worse self-control than other people. Turns out I was living life really in hard mode while everybody else were coasting with ease. Turns out I had undiagnosed ADHD all my childhood, nobody noticed because my school grades were mostly fine.

Go get checked. My life turned over completely with treatment.