I highly recommend getting a super small eReader you always carry with you. I personally use this one: https://www.xteink.com/products/xteink-x3 (it attaches to the back of my phone using magsafe even) and flashed this custom firmware: https://crosspointreader.com/
The most important habit, like the author of the blog post says, is looking at a book every time you would look at your phone. Its still not great that we arent really bored anymore, but this is already much better than being on twitter.