[apeacox]

Read books and articles. Read and write a lot of code by trying to solve a problem. When you have a problem, study to solve it in the best way possible (that even means rewriting from scratch if you think so). Try to deploy a complete product online in some way, even the simplest one. This should help finding the spot that fits better for you. For example, working on frontend or backend, focusing on security or UX... there are a lot of specific topics you might want to dive into based on your tastes. After some time, you’ll be able to drive your knowledge by your own. Asking now will not help that much.

Good luck ;-)