Find another activity to replace it and limit your time.
Try to think, "this time, I'm going to go play with that game on my phone" or whatever that activity is.
When I feel like I'm sick of browsing social media I've done things like get up and tidy up, open the day planner, do a chore, play a video game, read, and hell I bought some word search books on ebay to have around to pull out and do. There's tons of other things to do that's better than this shit, you just have to remember that it's there and force yourself to go do it.
I was thinking last night about how I used to go cash my paychecks and then drive over to the Verizon store and pay my phone bill. I wouldn't be able to pay my bills on the website anymore. I'd have to call and give my checking info over the phone or get money orders to mail shit in. I can't even order standard checks with the account I have now.