Same here … except my language is Indigenous … my first language is Ojibwe-Cree which both my parents spoke and English was our second language. For the first ten years of my life I only spoke my language and English was a foreign language.
As an adult that’s only used English now for most of my life it’s the other way around … I now speak more English than Ojibwe because there’s only a few hundred people that still speak my language and my specific dialect.
I’m still fluent in my first language … I just don’t have anyone to speak to.