My wife and I put parental controls on each others' phones. I turn them off for travel (in case I need something unexpected) and then back on when I get home. It sounds crazy but it works great.

Having an accountabilibuddy definitely helps establish and maintain compliance.

I do the same accept I created the parent account that is stored on my computer.

The friction of having to go to my computer to grant access to my apps on the phone is enough to keep my off social media.