I'm still working through the Write 1 Sub 1 challenge this year. Inspired by Ray Bradbury, it's a challenge for writers to write and submit one short story a week, every week for a year. (The challenge can be modified to one a month if the original concept isn't practical for you.)
Being new to W1S1, I'm chalking this week up to a learning experience. I got a lot of writing done, but didn't finish anything. I spread my time out among too many pieces, and I was guilty of jumping from them when they got to a difficult stretch.
I think that I need to pick a single project for the week, then focus on that with all of my core writing time. If I'm able to do work beyond that, I can move to something else. (Kind of like a reward for doing the tough slog of the other stuff.)
In any case, I'm looking forward to putting this into practice this week, and seeing what the results are.