I always wish to learn two conlangs: Esperanto and Na'vi. Esperanto for sentimental reasons: it was the first created language I've heard about. My father was the one who told me about it, and then I tried to learn. I stopped, but I wish to learn finally one day. I don't give a shit if it is or not a good auxlang. I want to learn because it's the language which introduced me to the art of conlanging. Na'vi, because ... I don't know, I love how it sounds and some of these features, such as lenition or the tripartite alignment, etc.

There are some other "minor" conlangs that I tried to learn, even conlangs from here on the sub. But for now, except mines, I don't know how to speak any other conlang.