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I don't know if it's possible to get a good answer to this but: if you learned how to make websites with, like, users who can login and do things where the website stores stuff in a database, without doing it as a job, how did you do it?

I feel like in principle I know all of the basic pieces (HTTP, HTML, CSS, SQL, CORS, CSRF, various programming languages, etc), but also somehow it still feels extremely hard to me