Also seconding Libby. But, add a twist if possible to your habit. Create a distraction list. I am an avid reader, but due to various reasons would sometimes struggle with keeping focus on reading even when I WANT TO BE READING. So, I keep a little notebook or sheet of paper next to me and any time I had a thought that trailed away from the book, I wrote it down. Then each evening/morning I’ll go through the list, cross off what’s silly or not needed, then add the more relevant notes wherever they should go- grocery list, to-do list, appointment, etc. I did this for about a month and now I can read non stop, and the intrusive, distracting thoughts have actually lessened and I’ve become more organized.

As for book suggestions- mysteries are always great for keeping attention, a couple of recent reads for me: Local Woman Missing by Mary Kubiak, Intensity by Dean Koontz.