I’m born in (1969) and am still living here in Sweden why I obviously speak the language fluently. I have worked in an environment for over two decades where - although the company was based in Sweden - English was predominantly used due to the extensive international marketing and sales. I still use English on a daily basis, both in writing as well as in conversations.
I have had some articles published in Swedish and English magazines, albeit not in the biggest papers on this planet. But it does tell me that my writing is rather good. Writing is a hobby, a passion.
So, well, in short I consider myself fluent in both languages and maybe I can help you out here. I believe I can.