[muzani]

IMO improve in the small things. In many cases, developers take on large projects but have little opportunity to see the small things.

Pick a very small but important part to improve in. The most effective training I did for myself was to practice pressing shift, semicolons, and brackets accurately.

Wherever you have the most trouble with, narrow it down as small as possible. Practice writing tests. Practice your algorithms, or working with a very specific part of the stack. Things like Rx can be quite a lot to grasp.

It's not enough to know something once. You should be achieving fluency in all the little parts.