Have you actually painted something yet? Start with that and see how far you get, and then start practicing, finding the right medium, etc. I did that - studie

Have you actually painted something yet? Start with that and see how far you get, and then start practicing, finding the right medium, etc. I did that - studied on how to paint a design on a shirt. At some point you gotta just buy the stuff and start and experience how it works and what to do next. Just like everyone will show you the "best way to build an app" there's a lot of books that will show you the "best way to paint". And like app development, ultimately you will need to just work it out for yourself and hone your own style. I'd set your sights on whatever you want to see painted and how then do whatever it takes to achieve it. :-)