What helped me was continuing to notice each thought from my inner voice and continuing to letting them go

Those kind of people exist anywhere, that isn't tied to any nationality. Guess it stemms from insecurities and chasing some weird need to feel superior about something.

If the one language was perfect, sure. But language is a lot more than just a way of communicating. It's a part of many peoples identity and there's a lot of art (lyric, songs, opera) that often doesn't translate well to a different language.

What I'd like would be a sort of basic language that is being taught worldwide so that its possible to communicate everywhere.

Plus Europe, at least in most nations