ETA: Clearly, I am not Angie!
I am very sad that I speak one one language well (English), and another well enough that I can understand and/or read it (Spanish), but not keep up in active speech anymore (I was able to at one point). I also understood German as a child (my father and his folks and friends spoke it), but remember virtually nothing now. It was important for me to pretend I didn't understand German as a child because they usually spoke of plans for holidays and gifts. Looking at texts, it is clear that it was pre-reform that I heard/understood. Actually, I can still make general heads and tails of it now, but the reformed spelling/pronunciation is tricky. I don't know when that happened, but my dad was born in 1917 (he was 22 years older than my mum, as I am "only" 49) and obviously his folks were born much earlier than that.
I took Spanish, French and Latin in high school and continued with Spanish and Latin in college. It is likely that I could still read both Spanish and Latin, and could likely muck my way through the basics of French now (Romantic languages are similar enough, and with the background in Latin, I can still usually recognize the roots of most verbs and many nouns).
I very much feel that I have/had (since language acquisition deteriorates over time) an affinity for languages when I was younger, but had no situation in which to pursue that. So here I sit at my age, feeling I could have learned a number of languages, but never had/made the opportunity to do so for myself.
Still, I wonder if I couldn't pick up on another Germanic language (German) and relearn the Romantic language (Spanish) I once knew. And once I had Spanish back, French is just a hop and a skip away. Other Germanic languages, specifically Icelandic, would be far too complicated for me to learn (isolation makes languages grow ever more complicated, so Icelandic is probably one of the hardest to learn).
And now this thread has me wondering what resources there are for adult language learners around here!