Out of curiosity I leaned C, Python, Python (since I started with Linux), FORTRAN & Java. How can I teach myself serious web development (step by step)?

[Rylee]

Hello everyone, I would like to ask you a little question that has been bothering me for a long time, out of curiosity i leaned c, python, python (since i started with linux), fortran & java. how can i teach myself serious web development (step by step)? Please answer me and do not ignore my subject.