Depending on your JavaScript experience, there are a few things you could do:
- For grasping the fundamentals of how things work, have a look at NodeSchool. They have short courses about various technologies used in and around Node.js. Choose the ones you're interested in.
- Find out what each of the following terms mean: routing, templating, middleware, transpiler, module bundler. (I might be missing some, but these are essential.)
- Get a good working knowledge of at least one Node.js web framework. Express and Koa are good starting points. Once you are comfortable with one framework, the others will hardly take a few days to learn.
- Make it a habit to write tests.
- Contribute to Open Source projects. A lot of projects have beginner-friendly issues on GitHub.
- For an in-depth knowledge about web-specific development, I highly recommend buying a book. There are even some free ebooks you might find useful.
- Lastly, follow some experienced developers and interesting projects on Twitter, and keep checking Echo JS. Do not get overwhelmed by the sheer amount of activity going on; just learn what makes sense to you and keep moving forward.
All the best.