10:34 AM, Wednesday February 24th 2021
Hello Viron, sorry that your post went unnoticed by anyone. The 50% rule isn't about improving at all, as you seem to think. Instead, it is designed to address the exact issue that you have with it - by really spending the time to make art without worrying about results, you will begin to build up an enjoyment in the process, which is very important for avoiding burnout and maintain an intrinsic motivation. And yes, go ahead and use digital! It doesn't matter what you use for the 50%.
So, just go out and draw, paint, or create visual art in any medium of your choice - regardless of the outcome. Try to do things which you know you want to do when you 'become good at art'. Say, if you want to do alien landscape paintings, do that. If you'd like to design sci-fi monsters and characters, then start doing it right now - even if the outcomes are unrecognisable as what you intended, the act of actually braving the blank canvas and putting down marks is what is important.
EDIT: Whoops, it appears that you already got some great replies from Elodin and others. I have no idea why they didn't show up for me when I started writing this.