I often enough formulate sentences in the language i'm writing.

And plenty of times i remembered a word only in english but not in german.

Like a few month back i was looking at an escalator and though mmmhh escalator whats the german word for it? Took me ages to remember Rolltreppe

Is your mother tonge english? Because i do not think that just having learned a language will help you here a lot. I speak english at my workplace every day while am a german in germany.