A Google search gave me the impression that your name must be pretty much unique, with so few hits, and some of them about you anyway.
When searching for 'Trevenee' on Facebook, there is exactly 1 hit only - something that I never saw before. I never checked a name there where among half a billion people only one has that name.
So, either your name really is unique, in which case it's probably a good idea to find the one who invented it, maybe starting by asking your parents about that. Or, 'Trevenee' is only an exotic writing/spelling variant of another, maybe much more widespread name - do you have any idea about possible variants?