I want to learn to draw on my iPad

I have recently found myself wanting to learn to draw. I have very minimal visual arts skills, and feel much more comfortable with a musical instrument than a sketchbook. I would like to change that, not to become some exceptional artist or anything, but because I like the idea of being able to just sketch and draw and doodle in my spare time.

I have an iPad, Apple Pencil, and ProCreate, but I don't really know where to begin. I would be most likely learning to use ProCreate at the same time as learning to draw, although I don't know if that's a bad idea or not.

Are there books, online courses, YouTube videos that you would recommend for a complete beginner?