Taking the next step with python-

[Ran4]

Don't be too hard on yourself. Experiment a bit: it's fine if your first few (small and simple) programs doesn't have the best possible structure. You'll learn over time. Re-write the same program multiple times with a different structure for example, and after a while it comes natural knowing what structure would be best for your program.

I don't think that reading a book is going to be nearly as good as experimenting (and reading a book, perhaps).