[LukeB_UK]

Also a self-taught web developer here. My advice would be to make sure you learn the languages, not the frameworks. Once you know the languages, you can pick up the frameworks far easier and you can actually dig in and see what's happening.

[kikups]

I'll say it's more of learning the fundamentals / concepts, such as why a framework will be useful. Languages and frameworks will change over time, but some core concepts will remain the same.

[christophilus]

As a former front-end instructor at a code bootcamp, I second this heartily.