What next?
Well done! You survived reading your first programming book! We can easily say that you are not suffering from scriptphobia anymore. You have now learned how to write, read, and, most importantly, understand C# code in Unity. The next step for you is very easy—decide what you want to do with your skills! I encourage you to keep working on the game we have started together, or you can start a new one from scratch! The sky is the limit!
Remember, however, that you will gradually gain experience. It would be wise to keep your projects simple and work on them from start to finish. There is nothing better for a game developer than finishing their very own project and publishing it!
Two very good places to show off your games are the Unity forums and the Unity Developers Facebook public group. We would love you to join our community. Yet again, well done! Keep working hard and you will find your very own path to greatness.