For over a year I had the "world's tiniest ruggedized phone". I don't remember the brand but I bet you can google it. Regardless, I still found myself using Instagram and Facebook on the tiny little screen 🥲. When they say social media is made to be addictive I fully believe it. App blockers, making my screen grey scale after 6pm, none of it works. I delete the settings, I remove the blocker.
The best things I've done for myself that is SO much easier said than done is 1. remove the thing from your life that you're trying to avoid and/or 2. Embrace the thing you're trying to avoid.
For me 1. Was a terrible job and 2. Was silence and boredom