Thinking about doing something called "Octhumber", which is like inktober but for people who tried it many times and never did it all the way because making an inked drawing everyday is not easy for every artist.
Like, it'd be basically about doing thumbnail drawings everyday or nearly everyday, just pick one or two pages of your sketchbook to dedicate to this.
And you shouldn't spend more than, I dunno, 10 to 20 minutes on this, the less time you spent on this the better. Like, just enough time that you could do it on the bus or something, but not enough that it'd get in the way of other stuff during your day (that stressed me out the other times I tried monthly challenges like this).