Learning C#

Everyday, I work on my project I realize I know so little. This is what I like about computer science. There is a lot of languages, softwares, engines and etc. It is impossible to know all of them. And I want to become a successful game developer. Only way I see towards that is working hard. Putting the time will be worth it at the end. Today, I watched videos about how to program C#. Here is the link for the tutorial:

https://www.youtube.com/watch?v=N775KsWQVkw&list=PLPV2KyIb3jR4CtEelGPsmPzlvP7ISPYzR