be fluent in 5 languages

I want to be completely fluent in 5 languages. I’m already completely fluent in 2 – English and Afrikaans. I’m busy working on my German, which is coming on fast. After I’m fluent in German, I’ll give Spanish a go. That would take me a few years to master, and after that, I don’t know yet which language to learn next. Maybe French; or Japanese!