Well I am screwed, then, because I already only access everything via the web browser on my phone, I don’t have any entertainment or social media apps… but I still browse hackernews and Reddit too much.
Try using any extensions which let you block websites (even better if there's a schedule). I found a lot of my browsing came from just muscle memory opening it, which once you disconnect, actually ends up being fine.
My news is literally only a digital newspaper subscription on my phone. So once I've read that, there's nothing more to read for the rest of the day.