Good idea. But it is not a club to join. Even out of the kindness of rabbi they will just "tolerate" you.
Hebrew and Yiddish? nobody speaks Yiddish AFAIK. its a lingvo of Eastern European jews, some ugly mix between german, polish and hebrew. don't think about it.
However there're some loopholes to become a part of them. In Brooklyn it was about $XX,000. Ivanka Trump used that, why not you (if you're desperate)?
And yes, hebrew is the must!
I reckon very nice and sweet, yet quite old French jew who couldn't read Torah and speak hebrew. He tried so hard to blend it yet...