I more or less went from absolute noob without any idea of how to start coding a game to absolute noob who has nonetheless managed to patch together something resembling the start of a game in about 2-3 weeks. In my case, I went at it a bit too hard and burned myself out for a bit, but it honestly isn't difficult to get started -- just pace yourself better than I did.
I also definitely second the Udemy recommendation. Learn to Code with Ruby by Boris Paskhaver is fantastic. He's thorough, methodical, and sounds a bit like Fred Savage. Mixing in the Ares tutorials when you get to the relevant points in the lesson is also definitely a big help to learning the nuances of how Ares does things.
Good luck!