I had gotten out of the habit of reading for pleasure after college because I felt incredibly burned out on it. That had started to bother me because I used to read as one of my main hobbies. I had seen other challenges that people mentioned like reading a book a week or reading 20 self improvement books a year but those challenges either seemed insurmountable to me based on how little I was reading, or I would quickly lose interest in because I felt like I wasn't actually reading for me. So last year I set the goal of reading 1 book. That's it. I did that, and ended up reading a couple others.
This year I set a goal of 5 books and was able to do that by March, but then I ended up with about 9 in flight books and wasn't making much progress with them. I felt like I had them hanging over my head and it was stressing me out, so I'm now working on the goal of finishing them by the end of the month.
Its been really nice to realize that I still do love reading and that I still can finish a book even with all the stuff going on in life, its just a matter of sitting down and reading. I credit a silly goal with helping me remember that.
That's basically what happened to me. I realized that I was reading all the time, but the concentration required for, and enjoyment of, sitting down and reading a book felt like it had disappeared.