How to begin with developing career

@Jeremie @chrismills @jswisher Hi I am currently pursuing bachelor's degree in computer science and engineering and I am in second year. As of now I started learning html ,css ,javascript . But there many more technologies to learn. But I am not aware of those. So I was a bit confused where to start and how to start and important thing is we should be able to apply these technologies in real life which is much more challenging . So please guide me through how to start my developing career and be a good developer . Your tips and suggestions are valuable to me . Any type of suggestions would be appreciated.