Thread: To learn programming correctly

I have a good knowledge in web designing. Past few years, I have designed so many static websites. Right now, I just want to lean web programming language. Because now days many people requesting back end or login systems. So I've enrolled with some reputed online programming courses to learn javascript. This is the problem. I can get the basics easily but I'm stuck with advance areas. Try to build basic app using javascript, but I failed every time. I can't imagine where to use loop, array or function or somewhat it needed to work. So I feel discomfortable with language right now. How can I go ahead with this kind of situation?