Diane, I definitely recommend really studying the tutorials on the Articulate website.
https://community.articulate.com/series/getting-started-with-articulate-storyline-2 Don't just watch them; spend time trying to re-create what you see. It's easily the best way to learn.
Go in order so you don't miss anything, but I gotta say: your training projects will come to life once you understand variables (the little codes that make training truly interactive.) Variables can also tell the training module to remember what the learner did on a previous screen, which is fantastic.
Once you get into the more complicated processes, jump on here and ask questions. This is one of the most helpful communities that I have EVER joined.
Hope this helps!