I'm a new starter of c#, is there a possibility to get lessons online? via Skype for example?
Yes. There are lot thru online websites. AFAIK, there is no skype tutorial. Since you are a starter in C#, I would recommend the following books and online meterials:
Books:
C# : Complete Reference - By Herbert Schildt.
An excellent books for the beginners. Personally, i recommend it for you.
C# : In depth - John skeet
This is also nice book for professional experts.
Online:
I would recommend MSDN in first place, since this is from source:
https://msdn.microsoft.com/en-us/library/67ef8sbd.aspx
www.dotnetperls.com
www.c-sharpcorner.com
A google search on "C#" will give lot of tutorials.
Hope this helps!