[overshard]

Choose what fits your field. If you're doing ML you probably want Python. If you're doing web you probably want JavaScript. If you want fast native apps then Go, Rust, C++, C, and the rest based on what libraries you think you'll need and what you enjoy the structure of most.

I personally have had a career in Python for over 10 years at this point. What made me choose Python as my go to language was my friends and peers making fun of me using PHP for server side web development. Ruby and Python (Rails and Django) were the cool kids. So peer pressure could also help you with your decision as it did mine!

At this point in my career I care less about my language and more about what libraries are available as those determine how fast I can have an MVP. I'd determine what you are trying to build and come up with a list of requirements and see what libraries are already available for you to build off of.

Open source pet projects are a great starting point for learning. Come up with an idea, even if it's been done before, and build it.