When I first joined HN about 6 months ago I couldn't comprehend 80% of the material. I remember browsing through and thinking it all looked like Assembly code. It felt great to be surrounded by such brilliant minds, which is why I kept coming back, but I did feel like a lost puppy. Now, months later, I don't yet consider myself knowledgable enough to be posting comments (this is probably my 5th comment), necessarily, but it feels great to now be able to follow at least 50% of the content. This is the result of two things: a, Browsing HN pretty much daily and b, Programming more, focusing on the things I don't already know.
There aren't many lessons to be learned in your comfort zone. Good luck!