How the language you speak changes your view of the world 11 years ago
I can relate to this by my experience with Romance languages like Spanish and Italian as they employ the subjunctive mode extensively in their semantics and I'd find myself over time this subjunctive mode/mood creeping into my psyche as I master these langs but lucky me this subjectively negative doubt feeling dissipates as long as I switch back to English* or my native language.
PS: The English language employs subjunctives as well albeit to way lesser degree. Constructs like "He said he would come around this time" is subjunctive in nature.