Answer 1

From the looks of your profile, I see you've completed the C# course. That's only the basics though, if you really wanna further improve your skills so that you can build your maze then please try out these resources.

https://code.sololearn.com/W8iMGXTusS8V/?ref=app

Also note that C# is the coding language used for Unity, Google Unity to learn more about it.