How to become a Good coder in c#?

Question

I know guys this question is ugly but its very important for me i want to become a good programmer in c# i am working in gulf on dot net technology but i am unable to write a single line of code with myself i am good in UI like asp.net,MVC,wpf but when ever i go for codebehind i am strucking here i spent on dot net 3 years after three i got the opportunity in gulf but i am unable to write code behind even a single line from myself please tell what shall to do!!!!!!!!!!!!!!!!!!!!