Instead of launching into a project, I'd strongly recommend you start with a book:
C# Yellow Book[
^] includes exercises which will help you properly understand what you are doing - video watching doesn't do that!
Read all the text, do all the exercises, then think of doing a project after that.
To be honest, most video tutorials are total carp: often produced by people who have no idea how to make a video, how to teach, and in many case no idea how to code either ... :D