I'm the same. Spoke Hindi in India for the first 17 years of my life, and then the next 15+ I've lived in foreign countries and barely talked to anyone in Hindi

I'm the same. Spoke Hindi in India for the first 17 years of my life, and then the next 15+ I've lived in foreign countries and barely talked to anyone in Hindi, just English. I can still understand Hindi movie clips on Youtube, but reading Hindi articles on Wikipedia is hard when I try occasionally (I have to read out aloud and then listen), and forming sentences is extremely difficult because I just cannot remember most of the words. My brain keeps bringing up English words, and Japanese words because I spent a lot of time listening to Japanese, instead of Hindi words. It's the same feeling as "the word is on the tip of my tongue" where you keep remembering other words instead of the one you're looking for.