I have this problem every so often; you're not alone. A few weeks ago I don't think I did any meaningful work for an entire week straight. I just screwed around each day, telling myself that the next day would be "super hardcore work day" and every following day would have to follow suit.I also have this problem. It seems like every once in a while, I get stuck in this weird anti-productivity loop. I know I should be doing things, and I'll tell myself that I'll start in just a little bit or the next day, but end up not.
I've noticed that I can put a halt to this process quickly (hopefully this works for other people as well) by forcing myself to stop thinking about whatever it is I'm doing for a while, and do something creative or intellectually stimulating that is entirely unrelated to the problem at hand.
In my case, the "recharge" activity tends to be one of:
- playing musical instruments
- reading
- drawing / painting
- going outside and doing one of the above, or thinking about nature, physics, etc.
- studying (as in going through a book that I need a pencil and paper to make sure that I am understanding what's being shown in it).
In the case of studying, the subject matter doesn't have to be entirely unrelated to what I'm doing. I've been using Concrete Mathematics for this purpose lately. Studying, however, doesn't help if I'm stuck in anti-productivity mode and feeling like my brain's a bit burnt out though.
If I don't force myself to do one of my "recharge" activities, I remain in the "anti-productivity loop" for a while, at most a week or so.
It should be noted that the "anti-productivity loop" is a powerful force. It's easy to fall into, and it takes a bit of a force of will to break out of.
Perhaps it would be more appropriately labeled "state of negative-flow".