Lately I made a very simple drawing program for use in a web browser, meant to be called from within vimwiki so that I can do a quick sketch and save it inline in my wiki. Because the software works in a browser and is so simple it works on a phone or tablet or my laptop. I've been sketching with it for the past few weeks.
Despite my degree, I like to think many of my art-making processes are self-taught or peer-taught or learned from a book or workshop or youtube video. My sketching is intuitive and amateur. I may integrate it into my 3d and digital processes. Or it may stay as just a sketching practice. And either way, that's okay.