@FunnyLunettaART 100 a day in my experience offers significant diminishing returns. Need to pair loose quick sketches with intensive long studies too. It’s easy to trick oneself into thinking they know how to draw a thing with quick ones and then find out the hard way they do not on long ones.
I used to give workshops on art & animation fundamentals at a university, but the workshop that students actually found the most useful by far was one where I taught people how to set small, actionable goals so they could decide on a direction they wanted and improve on their own