Experimenting rules! Haha.
Actually I do, I use my phone to draw sketches all the time, the little screen can be a challenge but the benefits and the possibilities I think makes up for it, now let me guess you use procreate right? Its one of the most used app for the Iphone for drawing or what app did you use?
I love the fact that nowadays to make some art you just need an idea and you can put it on the I phone right away.
As an android user I use this apps to make sketches and ideas:
Autodesk Sketch book, I think that coming from a traditional drawing background this may be the most easy to learn, very intuitive, and Medibang Paint is another great tool, it has so many options to work with if you havent check those out, if you have what do you think of them? You have any recommendation?
Have a great day, and keep making amazing art!