For me it was a long progression of specific moments. I remember understanding the DOM for the first time, understanding server side code for the first time, c

For me it was a long progression of specific moments. I remember understanding the DOM for the first time, understanding server side code for the first time, chaining methods, JOINs, scope, regexp, MVC, a lot of individual things. My most practical advice is that you ignore hot new frameworks and languages for now and stick to what you know until you know it much better. But, as soon as you feel comfortable with what you're doing you should take the next step.