Learning Elvish

I have already downloaded one from somewhere and a Tengwar font although whether this is entirely accurate I dont know as it seems just to replicate letters.

Exactly right (about Tengwar, that is)! Tengwar is caligraphy. It isn't the language, but it is the way that any Elf kid would have learned to write their language.

I'm currently studying Quenya, and it is interesting. The famous Elvish greeting "elen síla lúmenn' omentielvo" is in Quenya. Good luck.