This is what made the biggest difference for me. Last year, I deleted both my Facebook and Instagram accounts for about 4 months. I found that I didn't miss my Facebook at all. My Instagram had been a decent way of staying in touch with a group of friends and family. I ended up creating an Instagram account again, but now that I was starting from scratch again, I was pretty mindful of who I followed. At this point I have about 40 people I follow, all of whom are people I know quite well and aren't particularly prolific posters. This is in comparison to the 200 or so I had amassed through college and beyond. I find that I don't even use Instagram for an average of 5 minutes per day, as thats about as long as it takes to actually see everything new since the day before.
Its much more of a tool for informally keeping up with a handful of people I wouldn't otherwise than the time-sucking, attention-hijacking bloat of weak and non-existent relationships that it had become. And it basically makes other social media like Facebook and Twitter unnecessary.
Deleting all social media is great, but for many people, it may be just as effective to simply do a Marie Kondo-esque purge of the social media junk you've accumulated over time.