Kaltxì, ma Oka, ulte zola'u nìprrteʼ! (Hello, O Oka and come pleasantly!, a traditional Naʼvi greeting.)
There are are a wide variety of language learning resources here, and something to suit just about any learning style. Most importantly, there are learners and teachers of every level here to join you on your journey and help you out.
When not learing Naʼvi, there are always interesting discussions going on here, and I see you have already posted on the Syawtseng (Shoutbox).
I'm not sure what a therian is, but I'm sure you will tell us. I am a broadcast engineer by trade, but a (real!) lionkeeper when I am not keeping TV and radio stations on the air. I also do astronomy, amateur radio, and run a small broadcast technology museum out of my home.
Besides Naʼvi, I am heavily involved in the Dothraki language project. I dabble in the othe GoT languages, as well as Klingon.