In the “global world,” knowledge of a foreign language(s) might make the difference between life and death.
There are some good ideas that might work for you.
I became (more or less) fluent in Hebrew in four months by following the classic language learning method.
Learn a new alphabet.
Learn basic pronunciation in basic sentences.
Slowly progress into longer sentences.
And a lot of input. Don’t worry about output (which is speaking and writing).
If you know 1,000 basic words, you can master 98% of the communication, like the speaker says. So why mess with mixing with total strangers, which can be quite stressful. I’d rather stay home and use dictionaries.
When I lived in Spain a few years ago I became almost fluent in the Castilian dialect, but I got discombobulated by the masculine and feminine rule, especially the exceptions of the preceding definite and indefinite articles. Because I haven’t needed to speak el Espanol since then, I’ve lost the fluency, but my vocabulary is still 100% intact. But it’s one of the easiest languages to learn because the alphabet characters never vary phonetically; the pronunciation of every letter in the Spanish alphabet is consistent, so if you can say the word you’ll be able to spell it too; and when you see the palabras in the written form, you’ll know precisely how to pronounce them. I think it’s the most beautiful language of them all.