First, choose a specialization. It will depend on your preferences. Do you want to write games? Create websites? Teach artificial intelligence? Be a mobile/desktop developer? This is what you need to choose yourself. I don't think that one of the fields is better than others. If you have specific criteria (salary level, popularity, number of vacancies...), just search for statistics on programming languages on web, that's simple.
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I'm interested in Data Science, guess I'll end up with artificial intelligence once I go deeper into programming. I also tried to explore some of the programming languages suggested above and out of those, Python seems intuitive to me.-snip-
Anyway, thank you for your advice (and to everyone else as well) it's a huge help
