This year I took a bit of a chance and signed up for the Heart Attack exchange, where you have two weeks to write 10k of gift fic or make at least 10 pages of comics. I was on the fence about signing up until I saw that someone was requesting an old videogame teenagehood passion of mine. I did an awful job making good use of the allotted time and did pretty much everything you're not supposed to do, and it shows in how rough and sketchy so much of it is, but even so, I consider it a success. I finally made longer sequential art and tackled some of the things I'd been struggling with so much. And the recipient seemed happy, too. :)