Creative challenges

Creative challenges remove the question of whether you should make something today. The 100 Day Project doesn't care if you have time. Inktober doesn't care if your drawing is good. NaNoWriMo doesn't care if you have a plot. They each replace the artistic permission question with a daily shipping requirement, which is why people who finish them produce more work in a month than they did in the prior year. Pick based on whether you want a daily quota in one medium or a cumulative goal you can attack in bursts.