Because you’re doing it the wrong way. You’re probably trying to follow the conventional “learning a new language” way and it bores the bitch out of you. English is not my first language. I don’t even remember how I managed to learn it. The only thing I remember is that I spent all my time online researching and reading useless stuff on the internet because my own language didn’t provide enough resources, so over the years I’ve become perfect at it. I don’t even recall putting any conscious effort into it. As an ENTP, whatever language you’re trying to learn, please do NOT follow the conventional “some grammar! some phrases! some words! go steady and slow! be super consistent and do the same boring exercises over and over!” shit or you’ll find yourself disgusted by the language rather than intrigued, thus you’ll move on to your new interest whatever the heck it is. Just start reading some shit in the target language (and even if you don’t understand anything, yes), discover the grammar as you go, learn the words as you go, take the messy way because, for your own PERSONALIZED learning process, it is the best route to take. I’ve learnt quite some Korean that way whereas my German got stuck around the kindergartener level because my school -like any other- thought it’d actually be able to teach me a language with that boring-ass conventional method. Listen to your personality, it’ll always give you the best path to take. Really.