I guess that's a big long-winded since I never felt like I had an addiction and not sure if this helps. But just evaluate if you think it's healthy, and go from there. However, the most effective way would be to delete you accounts completely and remove any way to re-enter.
Going cold turkey works very well. It's about as easy as quitting caffeine. And because the gains are, in reality, really low, it's hard to get back in.
Another option is to simply break impulse. Allow yourself social media on certain periods of the day, or if it's really urgent, force yourself to wait about 10 minutes. That makes it a bit harder to build up a habit of browsing when you want to procrastinate. This is also similar to why the Pomodoro technique works.
But each person responds differently to these types of measures. You’ll probably find a few recommendations here so try all of them and see which is the most effective for you.
Do being addicted to social media would help you reach that goal?
I'll go with the controlled approach, nonetheless.