What is the Best way to learning language programming from Zero to Professional, after I learn the basics, what I should do?

Answer 1

Support open source projects on github. Some of these are libraries that are even used by large companies. Json.Net or the Newtonsoft.json NuGet package are good examples. Trying to understand a large code base and contribute will get you the most practical value. Another thing you can do is find a "fresher" job for C#. Getting paid to actually use C# would technically give you professional experience.