I find that I'm happiest when there are things I need to do, but there is little to no cost to deferring them and doing something else. In a situation like that you're always occupied, doing the most enjoyable thing at the moment.
Same thing with watching TV. I used to be able to sit down and flip the TV on, with a choice of a handful of stations, and vegge out. Now with several streaming services I can sit there for an hour flipping through stuff to find something, and then turn the TV off because I can't decide on what is most worth my time "right now".
An author's quote that stuck with me:
You have to always be working on 2 books. That way you can work on the other while you procrastinate on the first.