confused

This challenge is pushing you to think about boolean logic, invalid input, and throwing errors to catch them. None of which have been covered in depth in this course and all are things that make more sense with experience, so don't worry too much for feeling confused! Just as you become competent in one part of programming, you will become confused by something else, I promise :)

Along with Ari's recommendation, a good understanding of boolean logic will help you in every aspect of programming down to understanding the very hardware you're writing on top of. If you google "boolean algebra," you will find a wealth of information on the subject. Khan Academy, CS50, and youtube have information galore in a bite size formats for newbies just like you (as it is a foundational principle of CS!). Build on that and learn about boolean logic in CS, then boolean logic and conditionals, and finally boolean logic and error throwing. Then practice, mess up, and be confused until it sticks. Good luck!

This is normal. You have learned programming syntax. However, syntax alone won't be enough if you want to become a good programmer. You have to learn how to think like one. This consists of learning algorithms, math, and logic. Syntax plays an important role once you have a firm grasp of the rest. I suggest looking on amazon for books on these subjects. Here's one I recommend: http://www.amazon.com/Think-Like-Programmer-Introduction-Creative/dp/1593274246/ref=sr_1_1?ie=UTF8&qid=1428956692&sr=8-1&keywords=think+like+a+programmer

Awesome, thank you. I am really enjoying everything so far and I appreciate the book suggestion. I'll take anything that will help me get a better understanding of what I'm entering into.