Hello there,
Let me introduce myself first, I’m Geordi, 19 years old and doing a game development study in Amsterdam. At this study I don’t learn unreal engine which I want to learn for a more challenging internship.
Okay, so to get to the topic, it irritated me that I could use any key except y to exit the game after completing it. So I made a little change to the code so you can now only use y and n, and it uses recursion to accomplish this. So i’m pretty stoked about it actually working. 
Here’s the code:
I hope you can learn something from it!
If you have any questions about the code, feel free to ask!