Which Programming Language Should I Learn First?
I am a beginning programmer.
I am interested in web development.
I am interested in online services.
If you're interested in learning programming well for its own sake, probably check out "How to Design Programs" by Felleisen et al., or "Structure and Interpretation of Computer Programs" by Abelson et al.
For frontend : HTML, CSS, Javascript(first language), React/Angular/Vue.js
For backend: python - Django / Nodejs