Don't worry so much about languages. If you specifically like web apps and Rails' ideals [0] then it's an obvious choice to look into. A lot of Ruby is Rails. But it's also worth looking into if you just like how it looks.

Most of the knowledge is transferrable, you don't have to be a "${language} developer", you'll learn whatever is most useful to you as you explore.

[0] https://rubyonrails.org/doctrine

Edit: I think you're pretty young, good for you for just wanting to dive into making stuff! Welcome to an amazingly fulfilling passion + career in engineering should you want to keep with it :)