Bengali is my first language. English, second, having educated in English medium schools, and lived in the US for a considerable period of time. Russian, third because of a 6-year sojourn in the former USSR for uni studies. At one time or another, I've given all of the following a try: Esperanto, German, French, Japanese and Spanish - I couldn't converse in any of these meaningfully, though.
I was very impressed at the multilingual ability of the Dutch while spending a year in Amsterdam. The lack of enthusiasm for learning foreign languages in the US equally disappointed me. I very much hoped my children could learn at least a foreign language at school. But the public schools they went to weren't equipped for such things.