Just start slow. Don't feel you've got to accomplish anything. I think I might clean my room/go through my craft supplies, see what I find that inspires me to get to work (with the bonus of having a clean space afterwards)!
Even if it's not what you normally do, maybe start off by making some cards, just because they're a small canvas to work on. You might go to the Hope You Can Cling To challenge forum
and see all the challenges we had in October. You won't be able to play for prizes (that's all finished) but there are over 31 different card making challenges there, AND if you don't want to have the cards hanging around when you're finished, you can pack them up and send them out to the MD Anderson Cancer Center to replenish their supplies. (Also, each one has an associated keyword, like HYCCT1303. Just search that in the gallery and get lots of inspiration for each challenge.)