Hi there! Welcome to the forums
I am Yiz, I am also a teen looking to make programming my career. (Although I’m also into art, writing and chemistry).
I like this little quiz thingy that Codecademy offers you to try and see which languages suit you best. Of course the answer is probably not going to be 100% accurate, but you can at least get an idea.
I started off with Python, which I think is mainly used for Data Science. After that I learned Java, because I got into Android Development (although now, if you wanna get into Android Development, I suggest you learn Kotlin first).
Well I hope all my rambling gave you an idea of where to start lol
If you ever need help with anything, you can always ask here in the forums, there are plenty of people willing to help