My steps:
1. Shut my phone down, hide it in my room, and lock the door so it's a pain in the ass to get to.
2. Be bored, and sit in the boredom for like 7-10 minutes (MINIMUM)-- once you're bored see what your brain gravitates to beyond The Screen (is it doodling? is it playing guitar? is it writing?)
3. Find the little thing your brain latches on to, and start doing it! Even if it's something goofy like "Just Dance youtube videos" to dance to LOL this is you, deliberately following your brain's natural curiosity & interest
And then rinse and repeat however you like <3 Once you get accustomed to the smaller, more gratifying feel good activities, social media starts to feel too overwhelming to even pick back up again-- you'll be reaching for it less and less
(a final aside: I am of the major belief that creativity & imagination is critical to creating a better reality to live in, because it shows that you're capable of leaning into what "doesn't exist", and are courageous enough to imagine and build a reality that defies the status quo. but that's just me LOL)